A U.S. Marine Corps KC-130J Herculues aircraft lands during Final Exercise 1 of Weapons and Tactics Instructor (WTI) course 1-15 at Sandhill, Marine Corps Air Ground Combat Center Twentynine Palms, Calif., Oct. 13, 2014. WTI is a seven week training event hosted by Marine Aviation and Weapon Tactics Squadron (MAWTS-1) cadre. MAWTS-1 provides standardized advanced tactical training and certification of unit instructor qualifications to support Marine Aviation Training and Readiness and assists in developing and employing aviation weapons and tactics. (U.S. Marine Corps photo by Cpl. Allison J. Herman, COMCAM/Released)

YUMA, Ariz. - U.S. Marine Corps mechanics provide necessary maintenance support of aircraft utilized in WTI 2-13, April 4, 2013. Mechanics, many of whom are augment personnel to MAWTS-1 from across the Fleet Marine Force, come together to ensure that the various aircraft are serviced and ready to perform safely during increased flight hours. -- (U.S. Marine Corps photograph by Sgt. Christopher R. Rye, 1st Marine Division COMCAM/ Released)

YUMA, Ariz. - U.S. Marines of 3rd Battalion, 6th Marine Regiment, 2nd Marine Division, fast rope from a CH-53E Super Stallion during Weapons and Tactics Instructor (WTI) Course 2-14 April 4, 2014. WTI is a seven week training event hosted by Marine Aviation Weapons and Tactics Squadron One (MAWTS-1) cadre. MAWTS-1 provides standardized advanced tactical training and certification of unit instructor qualifications to support Marine Aviation Training and Readiness and assists in developing and employing aviation weapons and tactics. (U.S. Marine Corps photograph by Lance Cpl. Adrianna R. Lincoln, 1st MARDIV COMCAM/Released)

NAVAL SUPPORT ACTIVITY, Bahrain (July 2, 2013) A member of Explosive Ordnance Disposal Mobile Unit (EODMU) 12 performs weapons maintenance aboard Naval Support Activity Bahrain. EODMU 12 is assigned to Commander, Task Group 56.1, promoting mine countermeasures, explosive ordnance disposal, salvage diving, and force protection for the U.S. 5th Fleet area of responsibility. (U.S. Navy photo by Mass Communication Specialist 1st Class Peter Lewis/Released)

An AV-8B Harrier II with Marine Medium Tiltrotor Squadron 264 (Reinforced), 22nd Marine Expeditionary Unit (MEU), takes off of the flight deck from the amphibious assault ship USS Wasp (LHD-1) on July 18, 2016. The 22nd Marine Expeditionary Unit, Deployed with the Wasp Amphibious Ready Group, is conducting naval operations in support of U.S. national security interests in Europe. (U.S. Marine Corps photo by Cpl. John A. Hamilton Jr.)

YUMA PROVING GROUNDS, Ariz. Ð U.S. Marine Corps Lance Cpl. Patice Arnold, mortarman, Weapons Platoon, India Company, 3rd Battalion, 6th Marine Regiment (3/6), 2nd Marine Division, takes cover during the fire of a M224 60 mm mortar system during the Talon Exercise (TalonEx) March 26, 2014. (U.S. Marine Corps photograph by Lance Cpl. Christopher A. Mendoza, 2nd MARDIV COMCAM/ Released)

YUMA PROVING GROUNDS, Ariz. - U.S. Marine Corps Lance Cpl. Tyler Martelle, infantryman, front, 1st Platoon, India Company, 3rd Battalion, 6th Marine Regiment (3/6), 2nd Marine Division, fires an M249 squad automatic weapon during a suppressive fire drill during the Talon Exercise (TalonEx) March 26, 2014. (U.S. Marine Corps photograph by Lance Cpl. Christopher A. Mendoza, 2nd MARDIV COMCAM/ Released)

YUMA PROVING GROUNDS, Ariz. – U.S. Marine Corps Lance Cpl. Patice Arnold, right, mortarman, Weapons Platoon, India Company, 3rd Battalion, 6th Marine Regiment (3/6), 2nd Marine Division, waits for the command to fire the M224 60 mm mortar system during a fire mission at the Talon Exercise (TalonEx) March 26, 2014. (U.S. Marine Corps photograph by Lance Cpl. Christopher A. Mendoza, 2nd MARDIV COMCAM/ Released)

U.S. Marines and Sailors assigned to 26th Marine Expeditionary Unit (MEU) conduct a wash down in Naval Station Rota, Spain, Oct. 20, 2013. The 26th MEU is a Marine Air-Ground Task Force forward-deployed to the U.S. 6th Fleet area of responsibility aboard the Kearsarge Amphibious Ready Group serving as a sea-based, expeditionary crisis response force capable of conducting amphibious operations across the full range of military operations. (U.S. Marine Corps photo by Sgt. Christopher Q. Stone, 26th MEU Combat Camera/Released)

U.S. Marine with 3rd Battalion, 3rd Marine Regiment, 3rd Marine Division, 3rd Marine Expeditionary Force cross a danger area during a Heavy Huey Raid at K-9 Village, Yuma Proving Grounds, Yuma, Ariz., Oct. 1, 2014. The exercise is part of Weapons and Tactics Instructor (WTI) 1-15, a seven-week training event hosted by Marine Aviation Weapons and Tactics Squadron One (MAWTS-1) cadre. MAWTS-1 provides standardized tactical training and certification of unit instructor qualifications to support Marine Aviation Training and Readiness and assists in developing and employing aviation weapons and tactics. (U.S. Marine Corps photograph by Sgt. Artur Shvartsberg, COMCAM/ Released)

040624-A-2262B-031.An Iraqi soldier explains to Coalition Forces soldiers what happened during rebels attack at their checkpoint. Violence erupted in the city of Ba'qubah, Iraq, June 24, 2004. The struggle during the insurgent uprising left a death tool of approximately 15 Iraqi police officers, 2 US Soldiers, and more than 30 rebels..(U.S. Army photo by Staff Sgt. Klaus Baesu) (Released)

FIFTH FLEET AREA OF RESPONSIBILITY (May 15, 2013) ¬¬– Ships Warrant Officer Steve Cooper talks with a crewmember from SH-60 Sea Hawk, Helicopter Sea Combat Squadron 26 based out of Norfolk, during a passenger transfer aboard RFC Cardigan Bay (L 3009) as part of the International Mine Countermeasures Exercise 2013. IMCMEX 13 includes navies from more than 40 countries whose focus is to promote regional security through mine countermeasures operations in the U.S. 5th fleet area of responsibility. (U.S. Navy photo by Mass Communication Specialist 1st Class Gary Keen/Released)

160814-M-AF202-142 MEDITERRANEAN SEA (Aug. 14, 2016) Marines assigned to 22nd Marine Expeditionary Unit (MEU), load ordnance on an AH-1W Super Cobra aboard the amphibious assault ship USS Wasp (LHD 1) on Aug. 14, 2016. The 22nd MEU, embarked on Wasp, is conducting precision air strikes in support of the Libyan Government of National Accord-aligned forces against Daesh targets in Sirte, Libya, as part of Operation Odyssey Lightning. (U.S. Marine Corps photo by Lance Cpl. Koby I. Saunders)

A 26th Marine Expeditionary Unit (MEU) Maritime Raid Force Marine engages targets in the prone through obstacles with an M4 Carbine during an advanced marksmanship range while conducting sustainment training in the U.S. 6th Fleet area of responsibility, July 31, 2013. The 26th MEU is a Marine Air-Ground Task Force forward-deployed to the U.S. 5th Fleet area of responsibility aboard the Kearsarge Amphibious Ready Group serving as a sea-based, expeditionary crisis response force capable of conducting amphibious operations across the full range of military operations. (U.S. Marine Corps photo by Sgt. Christopher Q. Stone, 26th MEU Combat Camera/Released)

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SAN DIEGO (March 3, 2016) Mass Communication Specialist 3rd Class Antonio Coffield, assigned to Fleet Combat Camera Pacific, conducts underwater photography training off the coast of San Diego, Calif. Navy Combat Camera has the Department of Defense's only underwater photography and videography capability, and supports combined, Joint and Fleet activities worldwide. (U.S. Navy Combat Camera photo by Mass Communication Specialist 2nd Class Arthurgwain L. Marquez/Released)

U.S. Marines assigned to Force Reconnaissance Platoon, Maritime Raid Force, 26th Marine Expeditionary Unit (MEU), observe as a foreign soldier climbs a ladder during simulated Maritime Interdiction Operations (MIO) training in the U.S. 5th Fleet area of responsibility, Aug. 27, 2013. The 26th MEU is a Marine Air-Ground Task Force forward-deployed to the U.S. 5th Fleet area of responsibility aboard the Kearsarge Amphibious Ready Group serving as a sea-based, expeditionary crisis response force capable of conducting amphibious operations across the full range of military operations. (U.S. Marine Corps photo by Sgt. Christopher Q. Stone, 26th MEU Combat Camera/Released)

160901-M-AF202-017 MEDITERRANEAN SEA (Sept. 1, 2016) Marines assigned to 22nd Marine Expeditionary Unit (MEU), and Sailors assigned to the amphibious assault ship USS Wasp (LHD 1) launch an AH-1W Super Cobra from the flight deck Sept. 1, 2016. The 22nd MEU, embarked on Wasp, is conducting precision air strikes in support of the Libyan Government of National Accord-aligned forces against Daesh targets in Sirte, Libya, as part of Operation Odyssey Lightning. (U.S. Marine Corps photo by Lance Cpl. Koby I. Saunders)

A 26th Marine Expeditionary Unit (MEU) Maritime Raid Force Marine engages a long distance target with an M40A5 sniper rifle at a range in Jordan, June 10, 2013. Exercise Eager Lion 2013 is an annual, multinational exercise designed to strengthen military-to-military relationships and enhance security and stability in the region by responding to modern-day security scenarios. The 26th MEU is a Marine Air-Ground Task Force forward-deployed to the U.S. 5th Fleet area of responsibility aboard the Kearsarge Amphibious Ready Group serving as a sea-based, expeditionary crisis response force capable of conducting amphibious operations across the full range of military operations. (U.S. Marine Corps photograph by Sgt. Christopher Q. Stone, 26th MEU Combat Camera/Released)

YUMA PROVING GROUNDS, Ariz. - U.S. Marine Corps Cpl. Ethan W. Scharfe, Marine Attack Squadron 311, Marine Aircraft Group 31, 3rd Marine Aircraft Wing, loads a 500 pound joint direct attack ammunitions on to a AV-8B Harrier during a Spider forward arming refueling point in support of Weapons and Tactics Instructor (WTI) course 2-14 March 28, 2014. WTI is a seven week training event hosted by Marine Aviation Weapons and Tactics Squadron One (MAWTS-1) cadre. MAWTS-1 provides standardized advanced tactical training and certification of unit instructor qualifications to support Marine Aviation Training and Readiness and assists in developing and employing aviation weapons and tactics. (U.S. Marine Corps photograph by Lance Cpl. Adrianna R. Lincoln, 1st MARDIV COMCAM/ Released)

An AV-8B Harrier II with Marine Medium Tiltrotor Squadron 264 (Reinforced), 22nd Marine Expeditionary Unit (MEU), lands on the flight deck of the amphibious assault ship USS Wasp (LHD-1) on July 18, 2016. The 22nd Marine Expeditionary Unit, Deployed with the Wasp Amphibious Ready Group, is conducting naval operations in support of U.S. national security interests in Europe. (U.S. Marine Corps photo by Cpl. John A. Hamilton Jr.)

WELLTON, Ariz. - U.S. Marine Corps water support technicians, Utilities Platoon, MWSS 374, conduct aviation ground support training during WTI 2-13. MWSS 374, known as Rhinos, employ water filtration and purification, water storage, and distribution systems equipment April 10, 2013. -- (U.S. Marine Corps photograph by Lance Cpl. Xzavior T. McNeal, MAWTS-1 COMCAM/Released)

A U.S. Navy SH-60 Seahawk assigned to Amphibious Squadron (PHIBRON) 4, USS Keasarge Amphibious Ready Group (KSG ARG), conducts flight operations aboard amphibious assault ship USS Kearsarge (LHD 3), in the Mediterranean Sea, Oct. 21, 2015. The KSG ARG is deployed to the 5th and 6th fleet areas of responsibility serving as a sea-based, expeditionary crisis response force capable of conducting amphibious operations across the full range of military operations. (U.S. Marine Corps photo by Cpl. Jalen D. Phillips/ Released)

FIFTH FLEET AREA OF RESPONSIBILITY (May 15, 2013) ¬¬– Ships Warrant Officer Steve Cooper signals to an SH-60 Sea Hawk, Helicopter Sea Combat Squadron 26 based out of Norfolk, during flight operations aboard RFC Cardigan Bay as part of a passenger transfer during the International Mine Countermeasures Exercise 2013. IMCMEX 13 includes navies from more than 40 countries whose focus is to promote regional security through mine countermeasures operations in the U.S. 5th fleet area of responsibility. (U.S. Navy photo by Mass Communication Specialist 1st Class Gary Keen/Released)

110723-N-RM525-002 - ACAJUTLA, El Salvador - (July 23, 2011) Rear Adm. Alton Stocks, Commander, Navy Medicine East, is welcomed aboard hospital ship USNS Comfort (T-AH 20) in Acajutla, El Salvador during Continuing Promise 2011 (CP11). CP11 is a five-month humanitarian assistance mission to the Caribbean, Central and South America. (U.S. Navy photo by Mass Communication Specialist 2nd Class Jonathen E. Davis/RELEASED)

NAVAL SUPPORT ACTIVITY, Bahrain (July 3, 2013) Navy Diver 2nd Class Josh King, assigned to Commander, Task Group (CTG) 56.1, cleans the inside of a transportable recompression chamber system (TRCS) as a part of regular maintenance. The TRCS simulates surface decompression for the treatment of decompression sickness and pressure tests for prospective divers. (U.S. Navy photo by Mass Communication Specialist 3rd Class Wyatt Huggett/Released)

160708-M-AF202-009 ATLANTIC OCEAN (July 8, 2016) Marines assigned to Marine Medium Tiltrotor Squadron 264 (Reinforced), and 2nd Radio Battalion Detachment, 22nd Marine Expeditionary Unit (MEU), prepare for departure to conduct the first operational flight of the Intrepid Tiger II (V)3 Electronic Warfare pod aboard the amphibious assault ship USS Wasp (LHD-1). The Intrepid Tiger II EW is a network-enabled family of systems that provides a RDC (Rapid Deployment Capability) to support ground combat operations. 22nd MEU, deployed with the Wasp Amphibious Ready Group, is conducting naval operations in the 6th Fleet area of operations in support of U.S. national security interests in Europe. (U.S. Marine Corps photo by Lance Cpl. Koby I. Saunders/ Released)

A U.S. Army Soldier with the 1st Battalion, 181st Infantry Regiment (1-181 In), Charlie Company, Massachusetts Army National Guard, assigned to Combined Joint Task Force-Horn of Africa (CJTF-HOA), teaches Close Quarters Battle (CQB) tactics to the Rapid Intervention Battalion (RIB), a Djiboutian army elite military force, near Djibouti City, Djibouti, June 26, 2019. CJTF-HOA service members teach proper weapons handling and tactics to the RIB to enhance security and stability in East Africa. (U.S. Air Force photo by Senior Airman Daniel Hernandez) 190226-F-XT642-0620

US Marine Corps (USMC) Staff Sergeant (SSGT) Dan Jamison, Crewchief, Marine Light Attack Squadron 369 (HML/A-369), Marine Corps Base (MCB) Camp Pendleton, California (CA), checks out the GAU-16/A Cal. 50 machine gun onboard his USMC UH-1N Huey helicopter. The Huey and crew will provide close air support for coalition forces engaging insurgents in the city of Ubadyi, Iraq, during Operation Steel Curtain under Operation IRAQI FREEDOM.

LANDING ZONE BULL ASSAULT, Calif. - U.S. Marine Corps Lance Cpl. Jason Winslow, landing support specialists, Combat Logistics Regiment 27 (CLR-27), 2nd Marine Logistics Group, provides helicopter support team assistance for MV-22 Ospreys during Weapons and Tactic Instructor (WTI) Course 2-14 April 5, 2014. (U.S. Marine Corps photograph by Capt. Keith "The Bull" Stevenson, MAWTS-1 COMCAM/Released)

LANDING ZONE BULL ASSAULT, Calif. - U.S. Marine Corps Lance Cpl. Jason Winslow, landing support specialists, Combat Logistics Regiment 27 (CLR-27), 2nd Marine Logistics Group, prepares a 2,000 pound water bladder for lift by a MV-22 Ospreys during Weapons and Tactic Instructor (WTI) Course 2-14 April 5, 2014. (U.S. Marine Corps photograph by Capt. Keith "The Bull" Stevenson, MAWTS-1 COMCAM/Released)

LANDING ZONE BULL ASSAULT, Calif. - U.S. Marine Corps Cpl. Colby Robertson, landing support specialists, Combat Logistics Regiment 27 (CLR-27), 2nd Marine Logistics Group, provides helicopter support team assistance to MV-22 Ospreys near a forward arming refueling point during Weapons and Tactic Instructor (WTI) Course 2-14 April 5, 2014. (U.S. Marine Corps photograph by Capt. Keith "The Bull" Stevenson, MAWTS-1 COMCAM/Released)

160708-M-AF202-133 ATLANTIC OCEAN (July 8, 2016) Marines assigned to Marine Medium Tiltrotor Squadron 264 (Reinforced), and 2nd Radio Battalion Detachment, 22nd Marine Expeditionary Unit (MEU), take off from the flight deck of the amphibious assault ship USS Wasp (LHD-1) to conduct the first operational flight of the Intrepid Tiger II (V)3 Electronic Warfare pod. The Intrepid Tiger II EW is a network-enabled family of systems that provides a RDC (Rapid Deployment Capability) to support ground combat operations. 22nd MEU, deployed with the Wasp Amphibious Ready Group, is conducting naval operations in the 6th Fleet area of operations in support of U.S. national security interests in Europe. (U.S. Marine Corps photo by Lance Cpl. Koby I. Saunders/ Released)

LANDING ZONE BULL ASSAULT, Calif. - U.S. Marine Corps MV-22 Osprey prepares to retrieve a 10K net containing a 2,000 pound water bladder during Weapons and Tactic Instructor (WTI) Course 2-14 April 5, 2014. (U.S. Marine Corps photograph by Capt. Keith "The Bull" Stevenson, MAWTS-1 COMCAM/Released)

Distinguished visitors and Mongolian Armed Forces service members and U.S. Marines stand together during the opening ceremony of Exercise Khaan Quest 2017 at Five Hills Training Area, Mongolia, July 23, 2017. Khaan Quest 2017 is a Mongolian-hosted, combined, joint training exercise designed to strengthen the capabilities of the U.S., Mongolia and other partner nations in international peacekeeping operations.(U.S. Marine Corps photo by Lance Cpl. Maximiliano Rosas)

YUMA, Ariz. - U.S. Marine Corps Weapons and Tactics Instructor (WTI) Course 2-14 augment personnel listen as Commanding Officer Col. Bradford J. Gering, Marine Aviation Weapons and Tactics Squadron One (MAWTS-1), explains the overall mission of the exercise March 19, 2014. WTI is a seven week training event hosted by MAWTS-1 cadre, which emphasizes operational integration of the six functions of Marine Corps aviation in support of a Marine Air Ground Task Force. MAWTS-1 provides standardized advanced tactics and certification of unit instructor qualifications to support Marine Aviation Training and Readiness and assists in developing and empowering aviation weapons and tactics. (U.S. Marine Corps photograph by Capt. Keith "The Bull" Stevenson, COMCAM/Released)

LANDING ZONE BULL ASSAULT, Calif. - U.S. Marine Corps Lance Cpl. Brashad Sanders, landing support specialists, Combat Logistics Regiment 27 (CLR-27), 2nd Marine Logistics Group, unwinds a static wand before he provides helicopter support team assistance in support of MV-22 Ospreys during Weapons and Tactic Instructor (WTI) Course 2-14 April 5, 2014. (U.S. Marine Corps photograph by Capt. Keith "The Bull" Stevenson, MAWTS-1 COMCAM/Released)

U.S. Navy F-18 Super Hornet sits on the flightline during a static display at the 2012 Bahrain International Air Show at Shakir Air Base, Bahrain on Jan. 19, 2012. The United States Air Force personnel participate in the internationally acclaimed 2012 Bahrain International Air Show. This event strengthens partnerships in the region and allows the United States, coalition and partner nations work together to promote security, stability and mutual interests in the region. The USAF showcased a variety of military aircraft through static displays, including the C-17 Globemaster III, C-130H Hercules, and F-15E Strike Eagle. Additionally, a large number of aircrew and support personnel from bases in the Gulf region, Europe, and the United States were available to answer questions about the aircraft technology and capabilities.

(USAF photo by Staff Sgt. Andy M. Kin/Released)

YUMA PROVING GROUNDS, Ariz. - U.S. Marine Corps Lance Cpl. Tyler Martelle, infantryman, 1st Platoon, India Company, 3rd Battalion, 6th Marine Regiment (3/6), 2nd Marine Division, fires an M249 squad automatic weapon during a suppressive fire drill during the Talon Exercise (TalonEx) March 26, 2014. (U.S. Marine Corps photograph by Lance Cpl. Christopher A. Mendoza, 2nd MARDIV COMCAM/ Released)

YUMA, Ariz. - U.S. Marine Corps mechanics provide necessary maintenance support of aircraft utilized in WTI 2-13, April 4, 2013. Mechanics, many of whom are augment personnel to MAWTS-1 from across the Fleet Marine Force, come together to ensure that the various aircraft are serviced and ready to perform safely during increased flight hours. -- (U.S. Marine Corps photograph by Sgt. Christopher R. Rye, 1st Marine Division COMCAM/ Released)

A U.S. Marine Corps AH-1W Cobra helicopter takes off from a refueling station during Final Exercise 1 of Weapons and Tactics Instructor (WTI) course 1-15 at Sandhill, Marine Corps Air Ground Combat Center Twentynine Palms, Calif., Oct. 14, 2014. WTI is a seven week training event hosted by Marine Aviation and Weapon Tactics Squadron (MAWTS-1) cadre. MAWTS-1 provides standardized advanced tactical training and certification of unit instructor qualifications to support Marine Aviation Training and Readiness and assists in developing and employing aviation weapons and tactics. (U.S. Marine Corps photo by Cpl. Allison J. Herman, COMCAM/Released)

LANDING ZONE BULL ASSAULT, Calif. - U.S. Marine Corps Lance Cpl. Jason Winslow, landing support specialists, Combat Logistics Regiment 27 (CLR-27), 2nd Marine Logistics Group, provides helicopter support team assistance for MV-22 Ospreys during Weapons and Tactic Instructor (WTI) Course 2-14 April 5, 2014. (U.S. Marine Corps photograph by Capt. Keith "The Bull" Stevenson, MAWTS-1 COMCAM/Released)

YUMA PROVING GROUNDS, Ariz. – U.S. Marine Corps mortarmen with Weapons Platoon, India Company, 3rd Battalion, 6th Marine Regiment (3/6), 2nd Marine Division, prepare to an M224 60 mm mortar system during the Talon Exercise (TalonEx) March 26, 2014. (U.S. Marine Corps photograph by Lance Cpl. Christopher A. Mendoza, 2nd MARDIV COMCAM/ Released)

U.S. Army Rangers assigned to Delta Company, 3rd Battalion, 75th Ranger Regiment, move to objective during a training exercise on Fort Knox, Ky., April 24, 2014. 3rd Battalion is undergoing annual Task Force Training to evaluate how their Soldiers perform during operational situations. Rangers are constantly training to maintain the highest level of tactical proficiency. (U.S. Army Photo by Pfc. Gabriel Segura/ Released)

YUMA, Ariz. - A U.S. Marine Corps aviation communication systems technician, Marine Tactical Air Command Squadron 28 (MTACS-28), installs grounding rods for high-frequency antennas during Weapons and Tactics Instructor (WTI) Course 2-14 April 1, 2014. (U.S. Marine Corps photograph by Capt. Keith "The Bull" Stevenson, MAWTS-1 COMCAM/Released)

YUMA, Ariz. - U.S. Marines, 1st Battalion, 6th Marine Regiment, conduct a NEO during WTI 2-13. The Marines utilized aviation assets to quickly insert and execute their mission which included performing crowd control measures. -- (U.S. Marine Corps photograph by Sgt. Christopher R. Rye, 1st Marine Division COMCAM/Released)

U.S. Marine Cpl. Elizabeth Cisneros, combat correspondent, American Forces Network Afghanistan, captures motion imagery during a town hall meeting aboard Camp Leatherneck, Helmand province, Afghanistan, March 14, 2012. U.S. Defense Secretary Leon E. Panetta arrived in Afghanistan to speak with coalition forces; and presented his coin to every service member present in honor of their sacrifice and service to their country. (U.S. Marine Corps photo by Sgt. Andrea M. Olguin/ Released)