The dictatorial russian leader who took power after lenin was .

Joseph Stalin  was a Soviet dictator, general secretary of the Central Committee of the Communist Party of the Soviet Union between 1922 and 1952 and president of the Council of Ministers of the Soviet Union between 1941 and 1953.

In 1912, Lenin intended to propose the election of Stalin to the Bolshevik Central Committee at the Party Conference in Prague, but gave up when he met the resistance of the party. However, immediately afterward, Stalin was added to the Central Committee for "cooptation"

On April 3, 1922, Stalin was appointed General Secretary of the Pan-Russian Communist Party, a post he later transformed into the most powerful in the country. At that time, this position was seen as a minor charge within the party structure, however this position associated with the leadership it had over the Organizational Office of the Central Committee of the Party (Orgburó), gave Stalin a strong enough power base as to allow him to install his allies in the key positions of the party.

The accumulation of power by Stalin took the dying Lenin by surprise, who, in his last writings (Testament of Lenin), made appeals for the XII Congress of the Bolshevik Party to remove the "abrupt" Stalin.

d.)   when the us left nato after the end of the cold war and they had to evolve to focus on more humanitarian measures with the smaller budget