What event was most significant in escalating tensions during the Cold War?

:) during the cold war, people were afraid of communists, both outside and inside the united states. the red scare and mccarthyism that grew out of these fears were damaging to the american way of life. during the mccarthy years, many of the freedoms guaranteed in the bill of rights were limited. write a paragraph explaining what lessons can be learned from the mccarthy era about what u.s. citizens need to protect in order to preserve the democratic political system and the american way of life.

George h.w. bush a) hosted the dayton peace talks b) lost support when he agreed to new taxes c) was president when the soviet union collapsed d) ordered relief aid to rwandan refugees

Which best describes tactics used by the arab empire when it captured a region