Look at a cartoon on the right (both English and Chinese mean "Truman Doctrine"). If you draw up a title for this cartoon, it is more appropriate to turn against each other.

Analysis of test questions: Truman Doctrine was formed during President Truman's tenure and became the core of American foreign policy after World War II. 1March, 947, the introduction of Truman Doctrine marked the break of the wartime alliance between the United States and the Soviet Union and the beginning of the Cold War, so A was chosen.

Comments: The Cold War was a confrontation between the two camps of the United States and the Soviet Union, which was marked by the introduction of Truman Doctrine. During the Cold War, the United States and the Soviet Union waged fierce struggles in politics, economy and military affairs. The cold war had a far-reaching impact on the international situation. Knowledge points related to this, such as the background and specific content of the Cold War, need to be mastered.