Officer Candidate Lynae Johnson measures the distance between the hangars on the hanging display. (Photo by Officer Candidate Jessica Donnelly, 70th Regiment Maryland Army National Guard)

(Photo by: Spc. David Bolton, 133rd Mobile Public Affairs Detachment, Kentucky Army National Guard Public Affairs Office)

Phase one of training. Photos by MAJ (MDDF) Mulderick

©OCS

Two 'One Corporate System (OCS) open day sessions' were run in Addis Ababa on 13 August 2015 as part of the OCS open week, and to familiarise ILRI Addis staff with OCS (photo credit: ILRI/L.Dejene)

OCS Dinner 2017 ©OCS.

Two 'One Corporate System (OCS) open day sessions' were run in Addis Ababa on 13 August 2015 as part of the OCS open week, and to familiarise ILRI Addis staff with OCS (photo credit: ILRI/L.Dejene)

Pinning Ceremony

16th December 2017, OC's v CRGS

U.S. Marine officer candidates participate in 'The Quigley' during a combat course at Officer Candidate School, Marine Corps Base Quantico, Va., Feb. 6, 2019. Candidates must go through three months of intensive training to evaluate and screen individuals for the leadership, moral, mental, and physical qualities required for commissioning as a U.S. Marine Corps officer. (U.S. Marine Corps photo by Cpl. Brian R. Domzalski)