<P> The United States Navy Reserve (USNR), known as the United States Naval Reserve from 1915 to 2005, is the Reserve Component (RC) of the United States Navy . Members of the Navy Reserve, called Reservists, are enrolled in the Selected Reserve (SELRES), the Individual Ready Reserve (IRR), the Full Time Support (FTS), or the Retired Reserve program . </P> <P> The mission of the Navy Reserve is to provide strategic depth and deliver operational capabilities to the Navy and Marine Corps team, and Joint forces, in the full range of military operations from peace to war . </P> <P> The Reserve consists of 108,718 (64,715 SELRES and 44,003 IRR) officers and enlisted personnel who serve in every state and territory as well as overseas as of September 2012 . </P> <P> The largest cohort, the SELRES, have traditionally drilled one weekend a month and two weeks of annual training during the year, receiving base pay and certain special pays (i.e., flight pay, dive pay, etc .) when performing Inactive Duty Training (IDT, aka "drills"), and full pay and allowances while on active duty for Annual Training (AT), Active Duty for Training (ADT), Active Duty for Operational Support (ADOS), Active Duty for Special Work (ADSW), or under Mobilization (MOB) orders or otherwise recalled to full active duty . </P>

What is the difference between navy and navy reserve