What is armed forces reserve medal m device?

The Armed Forces Reserve Medal (AFRM) is a military award given to members of the Reserve or National Guard who complete a designated period of honorable and satisfactory service.

The "M" device is a bronze oak leaf cluster attached to the suspension and service ribbon of the medal. It is designated for subsequent awards and denotes an additional period of honorable and satisfactory service beyond the initial period required for the award of the medal.

The AFRM was created by Executive Order 10163 signed by President Harry S. Truman on 25 September 1950. It has been awarded for service during the Korean War, Cold War, Vietnam War, Gulf War, and the War on Terrorism.

Eligibility criteria for the AFRM vary depending on the time period and branch of service. Service members who have received the AFRM with the "M" device are authorized to wear multiple oak leaf clusters on the ribbon to denote subsequent awards.