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
Mongolians in the United Kingdom ties with each respective nation. However, after 1991 when the Soviet Union collapsed and began to form a democratic nation, migration trends from Mongolia began to change and the movement of Mongolians to other parts of the world (including the UK) became much more evident. Following these major changes to the political composition of Mongolia, many citizens of the nation found that they struggled in the new economy, many subsequently left the country in search of new lives in the United States and Western Europe. Migration to the UK specifically began in the 1990s and has continued ever since, the