U.S.-Russia summits through the years (28 images)

World leaders at the Yalta Conference from left to right, Soviet leader Josef Stalin, U.S. President Franklin Delano Roosevelt on February 9, 1945. Decisions made at this conference influenced the rebuilding of Europe after WWII. They were held on the grounds of Livadio Palace in Yalta, Crimea. Standing behind are Lord Leathers, Anthony Eden, Edward Settinius, Alexander Cadogan, V.M. Molotov and Averill Harriman. UPI File Photo

Soviet Premier Nikita Khrushchev (R) shouts "This is my America" at a New York cabbie from his window at the Russian U.N. delegation's headquarters during the 1960 United Nations' General Assembly. File Photo by Gary Haynes/UPI

Arriving at the White House on October 3, 1972, after spending the night at Camp David, Md., are from left to right, Russian Ambassador Anatoly Debrynin, National Security Adviser Henry Kissinger (hidden), Soviet Foreign Minister Andrei Gromyko, President Richard Nixon and Secretary of State William Rogers. In a ceremony in the Executive Mansion, Nixon and Gromyko signed and exchanged two documents that brought into full effect the strategic arms limitation agreements between the two superpowers. UPI File Photo

Soviet Communist Party Chief Leonid Brezhnev (L) claps his hands high with Nixon at his side following welcoming ceremonies for the Russian leader at the White House in Washington, D.C., on June 18, 1973. UPI File Photo