Eastern Bloc

Proper noun

historical

(historical) The largely Communist countries of the eastern world, usually Eastern Europe and especially in the Cold War era.

Japanese Meaning

冷戦時代における、主に東ヨーロッパに位置する共産主義国家群

During the Cold War, many artists from the Eastern Bloc struggled to exhibit their work in the West.

冷戦時代、多くの東欧の共産主義国出身の芸術家たちは、西側で作品を展示するのに苦労した。

Sense（1）

(historical) The largely Communist countries of the eastern world, usually Eastern Europe and especially in the Cold War era.

the Eastern Bloc

（ canonical ）