Individual Ready Reserve Command Patch ~ Roughly a 2¾ inch triangle patch of modern manufacture. This example is in new unissued condition and was probably manufactured in the 2000s. Until the War on Terror, members of the Individual Ready Reserve had not been called up since Operation Desert Storm. A major difficulty in activating the IRR stems from the fact that many of its members, typically those from the junior enlisted ranks, are unaware that they are even in the military. The Individual Ready Reserve (IRR) is a category of the Ready Reserve of the Reserve Component of the Armed Forces of the United States composed of former active duty or reserve military personnel, and is authorized under 10 U.S.C. ch. 1005. As of 22 June 2004, the IRR had approximately 112,000 members (does not include all service IRR populations) composed of enlisted personnel and officers, with more than 200 Military Occupational Specialties are represented, including combat arms, combat support, and combat service support.