His new policy of containment declared that Soviet pressure had to "be contained by the adroit and vigilant application of counter-force at a series of constantly shifting geographical and political points".  The goal of his policy was to withdraw all the . forces from Europe. "The settlement reached would give the Kremlin sufficient reassurance against the establishment of regimes in Eastern Europe hostile to the Soviet Union, tempering the degree of control over that area that the Soviet leaders felt it necessary to exercise". 
Containment Supplies and Accessories
An early test of containment came in Greece and Turkey. In 1946, a civil war broke out in Greece, pitting Communist groups against the British-supported government. At the same time, the Soviet Union was pressuring Turkey to allow it to build naval bases on its northwestern coast, thereby giving the Soviet Black Sea Fleet easy access to the Mediterranean. When Great Britain announced it no longer had the resources to help Greece and Turkey meet the threats to their independence, the United States stepped in. President Truman asked Congress for $400 million in military and economic aid for Greece and Turkey in March 1947. Truman cited the United States' obligation to back free peoples who were resisting control by an armed minority or outside pressures. This policy, known as the Truman Doctrine , appeared to work: The Communists were defeated in the Greek Civil War in October 1949; and the foreign aid helped strengthen the Turkish economy.