Following the end of the Second World War, the Allied Forces disarmed most of the Soviet Union's military arsenal as part of the peace treaty. One of these was the SAM site, which was the first anti-air missile developed in history. The puppet Premier Romanov had decided to secretly re-arm the Soviet military and, exploiting another loophole in the treaty, commissioned the development of a cheaper anti-air emplacement to repel the expanding Allied airforce.