Council of Councils
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January 12, 2026
United States
Did Dean Acheson Unintentionally Encourage the Start of the Korean War?
The secretary of state’s failure to include South Korea within the U.S. defensive perimeter in Asia in a January 1950 speech sparked accusations that he had invited North Korea’s invasion five months…
October 3, 2022
Foreign Policy
Lessons From History Series: The Legacy of the Truman Doctrine and Marshall Plan
In early 1947, Harry Truman announced that the United States would give assistance to countries under threat from authoritarian forces. Later that year, George C. Marshall addressed Harvard Universit…
June 27, 2020
United States
TWE Remembers: Truman’s Decision to Intervene in Korea
Seventy years ago today, President Harry Truman ordered the U.S. military to aid South Korea in repulsing an invasion from North Korea. The decision had geopolitical consequences that are still felt …
December 16, 2025
Nuclear Energy
Who Can Start a Nuclear War? Inside U.S. Launch Authority and Reform
The U.S. president can order a nuclear launch without consulting anyone, including Congress, and U.S. nuclear weapons have been prepared to launch within minutes since the Cold War. While reforms to …
April 28, 2014
United States
"Maximalist: America in the World from Truman to Obama"
Stephen Sestanovich, CFR's senior fellow for Russian and Eurasian studies, discusses his new book, Maximalist: America in the World from Truman to Obama.
March 12, 2012
United States
TWE Remembers: The Truman Doctrine
If you ever take a course on the history of American foreign policy, you are bound to get tested on doctrines. The first president to lend his name to a foreign policy doctrine was James Monroe, thou…
