In the 1940's, US feared a worldwide communist revolution, and took action from 1945-1950 in an attempt to stop the spread from country to country. During this time, there were two plans introduced, the Truman Doctrine, and the Marshal plan. The Truman Doctrine was introduced by US President at the time Harry Truman. In this plan, the US would pledge money to a country, as well as provide military, and political support to prevent the spread of communism in such countries. The Marshall plan, was another attempt to halt the spread of communism in Europe. This plan introduced by George C. Marshall, aimed to rebuild western Europe. The US would do this by giving six nations economic support to be handed out for 4 years. This plan was aimed at countries who were struggling to recover from the war, and needed economic aid. The two plans that were introduced were similar but had their individual role to prevent the spread of communism in Europe.