What larger conflict did all of these clashes relate to: Vietnam War, Korean War, Cuban Missile Crisis, and Bay of Pigs? What was the cause for the conflict?

and write it like a 7 grader

The larger conflict that all of these clashes were related to was the Cold War. The Cold War was a period of tension and rivalry between the United States and the Soviet Union, and their respective allies, that lasted from the end of World War II until the early 1990s.

The cause for the conflict was the ideological differences between the two superpowers – the United States, which was a capitalist democracy, and the Soviet Union, which was a communist dictatorship. The two sides were competing for influence and power around the world, and conflicts like the Vietnam War, Korean War, Cuban Missile Crisis, and Bay of Pigs were all part of this larger struggle for dominance.