Answer:
The policy of containment was a plan to stop the spread of something called communism. Imagine you have a box of crayons and you don't want the colors to mix. So, you put them each in their own space to "contain" them. This is kind of like what the containment policy was all about.
After World War II, the United States was worried that a political idea called communism might spread like a wildfire to more countries. In communism, the government has control over everything like businesses, farms, and factories. The U.S. didn't want this to happen. So, they decided to help countries that were in danger of turning communist. They provided money, supplies, or even military support.
So, the policy of containment was like a big effort to keep communism from spreading to more and more places. It was a big part of U.S. foreign policy for many years.
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