Answer:
During the Cold War, both the US and the USSR tried to keep their power over the world, but they did it in different ways.
The United States had a policy called "containment," which was meant to stop communism from spreading by keeping it within its own borders. Greece, Turkey, and South Korea were all in danger of being taken over by communists, so the US helped them in both economic and military ways. The US also put together military alliances like NATO to protect itself from the Soviet Union and its allies.
The US also had a policy of diplomatic engagement and used its "soft power" to promote democracy and capitalism. The US gave foreign aid and technical help to other countries to help them build their economies and promote democracy. It also used its cultural influence through programs like the Fulbright Scholarship to promote US values and ideals.
On the other hand, the Soviet Union tried many different things to spread communism around the world. The Soviet Union helped communist governments and rebel groups all over the world, like in Cuba, Nicaragua, and Angola, by giving them money and arms. As a counterbalance to NATO, the Soviet Union also made the Warsaw Pact, which is a military alliance.
The Soviet Union also used propaganda and subversion to spread its ideas and get other countries to do what it wanted. This meant helping communist parties and movements in other countries and using propaganda to promote the Soviet Union and hurt the US and its allies' reputation.