USMC Officer Infantry Course Patch Backing:No hook & loop Redesignated MACS-5 on 15 February

Redesignated MACS-5 on 15 February 1954

Marines performed their mission with distinction at every level

Marine helicopter crews during the Cold War maintained constant readiness for rapid deployment

Vietnam service

The Phrog went in

USMC Officer Infantry Course Patch Backing:No hook & loop Redesignated MACS-5 on 15 FebruaryUSMC Officer Infantry Course Patch Marine Corps Infantry Officer Course Embroidered Patch The Infantry Officer Course where Marine lieutenants earn the right to lead infantry Marines. The USMC Officer Infantry Course patch represents one of the most demanding military training programs in the world. The Infantry Officer Course (IOC) at Marine Corps Base Quantico, Virginia, is the crucible through which every Marine infantry officer must pass before