1955 in the Soviet Union

Russian song

RDS-37 () was the Soviet Union's first two-stage hydrogen bomb, first tested on 22 November 1955. The weapon had a nominal yield of approximately 3 megatons. It was scaled down to 1.6 megatons for the live test.

1911 Conte di Cavour-class battleship

Declaration of relations between USSR and Yugoslavia

Cold War-era slogan symbolizing Indo-Soviet friendship

1955-57 expedition to Antarctica