Question 1: Impact of Reagan’s firing the air traffic controllers
Answer: Labor unions deteriorated as employers fired striking workers and replaced them.
Question 2: American troops in Lebanon
Answer: to restore order after an Israeli invasion the year before
Question 3: Reagan’s "peace through strength" and the Cold War
Answer: Reagan’s assertive stance may have influenced Gorbachev to meet halfway.
Question 4: Emergence of Mikhail Gorbachev and NATO
Answer: It eased fears of nuclear weapons being used on European soil.