1.

How did eastern Europe respond to the formation of NATO?

They formed the Eastern Alliance of the Soviet Union to protect Soviet power.

Eastern Europe formed the Anti-NATO League and launched attacks against NATO allies.

They formed the League of Soviet Nations and aimed their influence at bringing in the Western nations previously committed to NATO.

Eastern Europe formed the Warsaw Pact, which was a pact of friendship signed by the Soviet Union and its satellite states.

The correct answer is: Eastern Europe formed the Warsaw Pact, which was a pact of friendship signed by the Soviet Union and its satellite states.