Full disclosure Army Ballistic Missile Agency
Code ABMA
Country USA
Wikipedia https://en.wikipedia.org/wiki/Army_Ballistic_Missile_Agency

Additional information ABMA Army Ballistic Missile Agency

The Army Ballistic Missile Agency was formed to develop the U.S. Army's first large ballistic missile. The agency was established at Redstone Arsenal on 1 February 1956, and commanded by Major General John B. Medaris with Wernher von Braun as technical director.