"soviets create iron curtain in eastern europe" "mao zedong leads successful revolution in china" "north korean invasion of south korea leads to war" which development is reflected in these headlines?

The spread of communism is depicted. The Soviets created the iron curtain by getting a huge part of Eastern Europe to turn towards communism, while Mao managed to beat the nationalists in a civil war and introduce a communist government. The two Koreas going to war was also about the Northerners trying to make the entire nation communist.

Iam in the 7th grade