Comedian and actor Adam Devine performs for U.S. service members and multi-national partners at Al Asad Air Base, Dec. 25, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian Iliza Shlesinger performs for soldiers from the 3rd and 4th Brigade 10th Mountain Division before the USO Holiday Tour at Qayyarah West, Dec. 25, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Medal of Honor recipient retired Army Capt. Florent “Flo” Groberg addresses the crowd at the start of the USO Tour at Al Dhafra Air Base Dec. 22, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Medal of Honor recipient retired Army Capt. Florent “Flo” Groberg speaks to service members before the USO Holiday Tour at Taji Military Complex, Dec. 25, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian Iliza Shlesinger performs for soldiers and airmen from Atlantic Resolve Forces during the USO Holiday Tour in Powidz, Poland Dec. 26, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian Iliza Shlesinger performs during the Chairman’s USO Holiday Tour at Al Dhafra Air Base Dec. 22, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

WWE Superstars “The Miz” and Alicia Fox perform for U.S. service members and multi-national partners at Al Asad Air Base, Dec. 25, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Chef Robert Irvine rides in the back of a CH-47 Chinook Helicopter to move to Operating Base Fenty to meet with and perform a variety show with service members, Dec. 24, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Country music artist Jerrod Niemann performs during the chairman's Holiday Tour for service members at Bagram Airfield, Dec. 24, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Country music artist Jerrod Niemann performs for soldiers and airmen from Atlantic Resolve Forces during the USO Holiday Tour in Powidz, Poland Dec. 26, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Sailors watch actor Adam Devine perform during Chairman’s USO Holiday Tour aboard the aircraft carrier USS Theodore Roosevelt (CVN 71) Dec. 23, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

WWE Superstars “The Miz” and Alicia Fox perform for soldiers and airmen from Atlantic Resolve Forces during the USO Holiday Tour in Powidz, Poland Dec. 26, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian Iliza Shlesinger meets with service members following a performance during the Chairman’s USO Holiday Tour at Al Dhafra Air Base Dec. 22, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian and actor Adam Devine poses for a selfie with service members during the USO Holiday Tour at Taji Military Complex, Dec. 25, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian Iliza Shlesinger performs during the USO Holiday Tour for service members at Bagram Airfield, Dec. 24, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian and actor Adam Devine speaks to soldiers and airmen from Atlantic Resolve Forces before the USO Holiday Tour in Powidz, Poland Dec. 26, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Country music artist Jerrod Niemann performs for soldiers and airmen from Atlantic Resolve Forces during the USO Holiday Tour in Powidz, Poland Dec. 26, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Medal of Honor recipient retired Army Capt. Florent “Flo” Groberg speaks to soldiers from the 3rd and 4th Brigade 10th Mountain Division before the USO Holiday Tour at Qayyarah West, Dec. 25, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Wrestler Gail Kim throws Army Sergeant First Class Cam Mitchell offstage during Chairman’s USO Holiday Tour at Morón Air Base Dec. 21, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman of the Joint Chiefs of Staff, along with USO entertainers, visited service members who are deployed from home during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Country music artist Jerrod Niemann brings soldiers on stage to hold the American Flag during the chairman's Holiday Tour for service members at Bagram Airfield, Dec. 24, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, wait for a COD flight to the aircraft carrier USS Theodore Roosevelt (CVN -71) at Al Dhafra Air Base Dec. 23, 2017. Al Dhafra Air Base Dec. 23, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, speaks to service members before the USO Holiday Tour at Taji Military Complex, Dec. 25, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

WWE Superstar “The Miz” meets with Marines assigned to Special Purpose Marine Air-Ground Task Force – Crisis Response – Africa as part of a troop engagement during the Chairman’s USO Holiday Tour at Morón Air Base Dec. 21, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman of the Joint Chiefs of Staff, along with USO entertainers, visited service members who are deployed from home during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Soldiers from the 3rd and 4th Brigade 10th Mountain Division watch the USO Holiday Tour at Qayyarah West, Dec. 25, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Wrestler Gail Kim throws Army Sgt. First Class Cam Mitchell offstage as part of a performace during the Chairman’s USO Holiday Tour at Al Dhafra Air Base Dec. 22, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, speaks to U.S. service members and multi-national partners at Al-Asad Air Base, Dec. 25, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian Iliza Shlesinger speaks to service members during the USO Holiday Tour at Taji Military Complex, Dec. 25, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian Iliza Shlesinger meets with Marines assigned to Special Purpose Marine Air-Ground Task Force – Crisis Response – Africa as part of a troop engagement during the Chairman’s USO Holiday Tour at Morón Air Base Dec. 21, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman of the Joint Chiefs of Staff, along with USO entertainers, visited service members who are deployed from home during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Chef Robert Irvine performs a cooking demonstration during the Chairman’s USO Holiday Tour at Morón Air Base Dec. 21, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman of the Joint Chiefs of Staff, along with USO entertainers, visited service members who are deployed from home during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Country music artist Jerrod Niemann performs during Chairman’s USO Holiday Tour at Al Dhafra Air Base Dec. 22, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, speaks to soldiers from the 3rd and 4th Brigade 10th Mountain Division before the USO Holiday Tour at Qayyarah West, Dec. 25, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Country music artist Jerrod Niemann performs for soldiers from the 3rd and 4th Brigade 10th Mountain Division before the USO Holiday Tour at Qayyarah West, Dec. 25, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Country music artist Jerrod Niemann speaks to U.S. service members and multi-national partners at Al Asad Air Base, Dec. 25, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian Iliza Shlesinger performs during Chairman’s USO Holiday Tour at Morón Air Base Dec. 21, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

WWE Superstars “The Miz” points out his polka dot socks during a performance for service members during the USO Holiday Tour at Taji Military Complex, Dec. 25, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian Iliza Shlesinger performs during Chairman’s USO Holiday Tour at Morón Air Base Dec. 21, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Members of the USO Holiday Tour perform for soldiers and airmen from Atlantic Resolve Forces in Powidz, Poland Dec. 26, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

WWE Superstars “The Miz” and Alicia Fox answer questions from the audience during the Chairman’s USO Holiday Tour at Al Dhafra Air Base Dec. 22, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian and actor Adam Devine performs during Chairman’s USO Holiday Tour aboard the aircraft carrier USS Theodore Roosevelt (CVN 71) Dec. 23, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

A Marine shows off his muscles during a pushup challenge during the Chairman’s USO Holiday Tour at Morón Air Base Dec. 21, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman of the Joint Chiefs of Staff, along with USO entertainers, visited service members who are deployed from home during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian Iliza Shlesinger performs during Chairman’s USO Holiday Tour at Al Dhafra Air Base Dec. 22, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

WWE Superstars “The Miz” and Alicia Fox perform for service members during the USO Holiday Tour at Taji Military Complex, Dec. 25, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Wrestler Gail Kim and Chef Robert Irvine speak to U.S. service members and multi-national partners at Al Asad Air Base, Dec. 25, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Country music artist Jerrod Niemann performs for soldiers from the 3rd and 4th Brigade 10th Mountain Division before the USO Holiday Tour at Qayyarah West, Dec. 25, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian Iliza Shlesinger performs for service members during the USO Holiday Tour at Taji Military Complex, Dec. 25, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian Iliza Shlesinger meets with Marines assigned to Special Purpose Marine Air-Ground Task Force – Crisis Response – Africa as part of a troop engagement during the Chairman’s USO Holiday Tour at Morón Air Base Dec. 21, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman of the Joint Chiefs of Staff, along with USO entertainers, visited service members who are deployed from home during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Comedian Iliza Shlesinger performs for soldiers and airmen from Atlantic Resolve Forces during the USO Holiday Tour in Powidz, Poland Dec. 26, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Members of the Chairman’s USO Holiday Tour sing Winter Wonderland during a performance at Al Dhafra Air Base Dec. 22, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. This year’s entertainers were Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

WWE Superstars “The Miz” and Alicia Fox perform for soldiers and airmen from Atlantic Resolve Forces during the USO Holiday Tour in Powidz, Poland Dec. 26, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)

Marines watch actor Adam Devine perform from the top of a F/A - 18/F Super Hornet during the Chairman’s USO Holiday Tour aboard the aircraft carrier USS Theodore Roosevelt (CVN 71) Dec. 23, 2017. Dunford and Troxell, along with USO entertainers, visited service members who are deployed during the holidays. This year’s entertainers are Chef Robert Irvine, wrestler Gail Kim, comedian Iliza Shlesinger, actor Adam Devine, country musician Jerrod Niemann, and WWE Superstars “The Miz” and Alicia Fox. (DoD photo by Navy Petty Officer 1st Class Dominique A. Pineiro/Released)