The correct answer to this open question is the following.
What do you think have been the three most important international developments during Ronald Reagan's two terms of office?
I think the three most important international developments during Ronald Reagan's two terms of office were the following.
1.- The support he offered to the rebels in Afghanistan who were fighting the Russian army that had invaded the country.
2.- The help President Reagan offered to Central American countries such as Guatemala Nicaragua, and El Salvador to contain the spread of Communism.
3.- President Reagan is credited to have ended the Cold War.
One of the reasons that led to the final days of the Cold War was that Ronald Reagan’s plan to outspend the Soviet Union led to a collapse of the Soviet economy and the political overthrow of its government.
US President Ronald Reagan knew that the Soviet Union was a military power but its economy was not good at all. The USRR Communist system had failed to provide enough food and products to Russians. Russia was in need to trade with Western countries if they wanted to avoid an economic collapse. Another factor that heavily contributed to the end of the Soviet Union was the political measures implemented by Soviet leader Mikail Gorbachev, called Perestroika and Galsnot.