On this day, 53 years ago, May 29, 1972 (April 17, 1972 in the lunar calendar), Nixon visited the Soviet Union. Nixon, who continues to be the most popular in American diplomatic history, is welcomed by Brezhnev On May 29, 1972, a week-long historic meeting between President Nixon and Soviet Communist Party leader Leonid Brezhnev ended today in Moscow. In the joint communiqué, both leaders acknowledged the many major differences between the two sides over the Vietnam war, but both agreed to "do our best to avoid military confrontation." Both sides agree with the idea of "both sides reducing" force in China and Europe. Soviet leaders accepted Nixon's invitation to prepare for a visit to the United States, but no date was set. After an official visit to Moscow, Nixon, the first U.S. president to visit the Soviet Union, will fly to Kiev, Iran and Poland. Henry Kissinger, the president's national security adviser, told reporters tonight that the United States will continue to bomb North Vietnam and lay mines in the port of Haiphong. When asked what Nixon would do if Brezhnev persuaded Nixon to change his military strategy on Vietnam, Kissinger said: "We don't want to take unilateral action. Nixon and Brezhnev signed two treaties to limit and freeze their respective nuclear weapon launchers