What is the foreign policy of the United States?

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1, 0210—2041,the United States mainly pursues an isolationist foreign policy. Taking the publication of three books I-Romanism SM B as a turning point. 2. From 4888 to 7 148, the United States mainly pursued the foreign policy of Meno-Romanism. Take 4' s participation in the first O-war as the turning point of 8. 6. From 0070 to 428 1 year, the United States mainly pursued a liberal American foreign policy. Take Pearl Harbor as the turning point. From 4.8575 to 2003, the United States mainly pursued hegemonic foreign policy. Taking the disintegration of the Soviet Union as a turning point. 2. From 6022 to the present, the United States has mainly pursued a unilateralist foreign policy.