Outside the Box: George Friedman: ‘Trump Doctrine’ pressures U.S. trading partners, reduces military risks — and ignores world opinion

A doctrine is how a president is forced to operate a realistic foreign policy. Sometimes, presidents proclaim their own foreign policy doctrines. Other times, observers see a coherent pattern in a president’s foreign policy and outline the doctrine. In both cases, doctrines ought to be seen not as strokes of genius or decisions made at the will of the president, but as actions imposed and dictated by reality.

The Truman Doctrine was defined in 1948. Given the former Soviet Union’s threat to Turkey and Greece, President Harry Truman announced that, as a general principle, he was committed to supporting free nations against communism.

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