Home » The US President Truman announced a new doctrine known as Truman Doctrinein International Relations MCQs The US President Truman announced a new doctrine known as Truman Doctrinein April 30, 2022 2 Views Q. The US President Truman announced a new doctrine known as Truman Doctrinein A. march 1945 B. march 1946 C. march 1947 D. march 1948 Answer: march 1947