NATO and The Warsaw Pact

NATO was created because the countries of Western Europe were to weak after the war to stop communist from spreading and so the Western Europe went and allied them self's with other nations. The countries that were in NATO were Western Europe, 12 nations, the United Kingdom and the United States. NATO was an organization that was made up of countries in Europe and North America that were in an agreement of peace and that the U.S would protect all the countries that were in NATO against any communist country.
The Warsaw Pact was formed of communist military alliances so they could maintain power over Eastern Europe and also the Warsaw Pact was formed in respond to the creation of NATO. The Warsaw Pact was made up of communist countries but mostly the leader was Russia.