Truman Doctrine
- the principle that the US should give support to countries or peoples threatened by Soviet forces or Communist insurrection. First expressed in 1947 by US President Truman in a speech to Congress seeking aid for Greece and Turkey, the doctrine was seen by the Communists as an open declaration of the cold war.杜鲁门主义（该主义认为美国应支持受苏联军队或共产党叛乱威胁的国家或民族; 该主义的首次表述出现于1947年美国总统杜鲁门在国会所作的关于要求对希腊和土耳其提供援助的演说中, 这被共产党人视为公开的冷战宣言）。