Treaty on the Creation of the USSR on 30 December 1922 by a conference of delegations from the Russian SFSR, the Transcaucasian SFSR, the Ukrainian SSR and the Byelorussian SSR. The Treaty and the Declaration were confirmed by the 1st Congress of Soviets of the USSR and signed by heads of delegations Mikhail Kalinin, Mikhail Tskhakaya, Mikhail Frunze and Grigory Petrovsky, Aleksandr Chervyakov respectively on December 30, 1922. The treaty provided flexibility to admit new members. Therefore, by 1940 the Soviet Union grew from the founding four republics to 15 republics. On 8 December 1991, Russian, Ukrainian and Belarusian Presidents signed the Belavezha Accords. The agreement declared
Tanks of the United States crews honed their skills for use against the Soviet Union. However, by 1991 the USSR had collapsed and the Abrams would have its trial by fire in the Middle East. Since the Cold War the U.S. has moved away almost completely from using light tanks; instead supplementing these with heavily armed armored cars. The M60A3 Patton still was used by the Marines and saw action in the Gulf War. The M60A1 tanks of the U.S. Marines saw action during Operation Desert Storm in 1991, opposing Iraqi armor which included the T-54/T-59, T-55, T-62, Type 69, and T-72. The M60A1s were