Truman’s foreign policy had a significant impact on international relations during the years 1945-1947 as it started the cold war. The year 1945 marked a turning point in America relations with Russia because Truman’s foreign policy sharply contrasted with that of Roosevelt. By releasing an atomic bomb on Japan in 1945 Truman increased suspicion of US motives and further damaged the relationship with Russia. This differed from former U.S president Roosevelt policy of” comprising” with Russia. However, 1947 was more decisive in the development of the cold war as the Truman Doctrine had a negative impact on international relations as it further damaged Russian perception of American foreign policy they claimed it as an attempt to spilt Europe
