Internationally known U.S. diplomat and Pulitzer Prize winning historian George Kennan has died at the age of 101.

Mr. Kennan helped design the framework for American policies toward the Soviet Union after World War II. As a foreign affairs specialist, Mr. Kennan crafted the policy of containment of Moscow, and predicted the Soviet Union would ultimately collapse from within.

Mr. Kennan served diplomatic missions at posts in Berlin, Vienna, Prague and Moscow, and was the U.S. Ambassador to Yugoslavia during President John Kennedy's administration. He won two Pulitzer Prizes from his nearly 20 books, and was awarded the Presidential Medal of Freedom, the Albert Einstein Peace Prize, and the German Book Trade Peace Prize.

Mr. Kennan died Thursday at his Princeton, New Jersey home in the northeast United States and is survived by his wife Annelise, whom he married in 1931.