What is army armed forces reserve medal?

The Army Reserve Components Achievement Medal (ARCAM) is a military decoration of the United States Army that is presented to reserve component soldiers who have completed four years of honorable and satisfactory service in a reserve component of the Army. The medal may be awarded to members of the Army Reserve, National Guard, and other reserve components of the U.S. military. The Army Reserve Components Achievement Medal was originally established in 1971 as the Armed Forces Reserve Medal, but was renamed and redesignated as the ARCAM in 1974. The medal is awarded with a bronze service star for each subsequent four years of qualifying service. The ARCAM is a high-level award for Army reservists and National Guard members, and is designed to recognize their dedication to the Army and their critical role in national defense.