Achievement Medal, Navy and Marine Corps

The Achievement Medal is a military decoration of the United States Armed Forces. The Achievement Medal was first proposed as a means to recognize the contributions of junior officers and enlisted personnel who were not eligible to receive the higher Commendation Medal or the Meritorious Service Medal.
The United States Navy was the first branch of the United States Armed Forces to award such a medal, doing so in 1961, when it was dubbed the “Secretary of the Navy Commendation for Achievement Medal”. This title was shortened in 1967 to simply, the "Navy Achievement Medal". On 19 August 1994, to recognize those of the United States Marine Corps who had received the Navy Achievement Medal, the name of the decoration was officially changed to the "Navy and Marine Corps Achievement Medal". The award is referred to in shorthand speech as a "NAM".