Flag of the Czech Republic

Flag of Czechoslovakia.

Czechoslovakia was an OTL nation located in Eastern Europe. It had its independence from Austria-Hungary in 1918 and soon, in the Second World War, Germany had begun to absorb the German-speaking parts of Czechoslovakia, and later separating Slovakia and turning it into a puppet state. After the war was over, Czechoslovakia was recreated though it became a Soviet Satellite State until 1991. Then, in 1993, Czech Republic and Slovakia peacefully split, thus bringing an end to Czechoslovakia.

Alternate versions of Czechoslovakia have been discovered throughout the multiverse:

In some time-lines, it has other names: