89th Regional Readiness Command SSI (U.S. Army) Black Coffee Mug

The 89th Regional Readiness Command SSI (U.S. Army) is a military unit within the United States Army, primarily responsible for regional readiness and supporting training missions. It falls under the jurisdiction of the U.S. Army Reserve Command (USARC). This command ensures that reserve component forces are ready to respond to domestic and overseas contingencies at all times. The SSI acronym stands for Standardization and Integration, a function within the USARC that standardizes and integrates training, doctrine, and tactics, techniques, and procedures throughout the U.S. Army Reserve. The 89th RRC operates under the North American Aerial Surveillance Command (NAASC), which is responsible for maintaining air sovereignty over the continental United States and Alaska.