Which nation had a massive warsaw pact army (led mostly by the soviets) of nearly 600,000 thousand soldiers sent into it to remove it's leader and stop reforms?

Czechslovakia

The country is Czechoslovakia. The Soviet Union led Warsaw Pact troops, numbering over 600,000 in an invasion of Czechoslovakia to crack down on reformist trends in Prague. the soviet feared the reformist actions of reformist Alexander Dubček, would spill over in other communist states, in Eastern Europe. While the soviet union succeeded in crashing the reformist movement, it laid ground for future uprising in the future.

James wattrichard arkwright eli whitney thomas edisonnicolaus otto