The Republic of Surea Reserve Forces (ROS Reserve Forces, ROSRF, Romaju: Jupon Minggukku Yubikun, Honju: 朝本民國 豫備軍) is a 2,650,000 strong reserve force of Republic of Surea.
There are two major branches for Reserve Forces: the Mobilization Reserve Forces (動員豫備軍; Dong’en Yubikun) and the Homeland Reserve Forces (鄕土豫備軍; Kyōdu Yubikun). Soldiers who completed their service in Republic of Surea Armed Forces are automatically transferred to Reserve Forces and must serve first 3 years as Mobilization Reserve and then next 5 years as Homeland Reserve before they are given the choice to choose which branch will they serve the years after. During the wartime, about 10 divisions will be formed under Mobilization Reserves, and deployed to war zone to provide support and regional stabilization. In the meantime, Homeland Reserve will defend the mainland from any possible attacks from the enemy.