In 1989 Germany’s Berlin Wall was demolished, and many Eastern European countries began to exit from communist control, and by 1991 the Soviet Union’s government collapsed. This marked the end of what period of time? __?__ What agreement was signed that sparked this? ___?___

This marked the end of the Cold War. The agreement that sparked this was the Intermediate-Range Nuclear Forces (INF) Treaty signed in 1987 between the United States and the Soviet Union.