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

Reagan and Gorbachev embrace after putting the INF treaty into effect June 1, 1988. Reagan's description of Russia as an "Evil Empire" vanished as their friendship grew throughout his two terms in office. File Photo by Cliff Owen/UPI

Russian Federation President Boris Yeltsin (L) and President George H.W. Bush applaud one another during arrival ceremonies on the South Lawn of the White House June 16, 1989. File Photo by Martin Jeong/UPI

National Park Service workmen hoist a huge Soviet flag into position beside the American flag on May 30, 1990, in front of the old executive office next to the White House in preparation for the historic summit meeting between Gorbachev and President George H.W. Bush. File Photo by Richard Tomkins/UPI

Ambassador Joseph Reed (R), chief of protocol for the State Department hands Bush one of several treaties he and Gorbachev then signed on June 1, 1990. Handing Gorbachev his copy is I. I. Yakovlev, head of the International Law department of the foreign ministry. File Photo by Cliff Owen/UPI