Rudolf Vilem Perina ( ) ( January 3 , 1945 – June 14 , 2018 ) was an American diplomat who specialized for more than three decades in European East-West relations during and after the Cold War , and on the Dayton Accords following the dissolution of the Former Republic of Yugoslavia . This includes participating in the 1988 Moscow summit meeting between President Reagan and President Mikhail Gorbachev , during the former 's first visit to the USSR . He also served as ambassador to the Republic of Moldova , U.S. Special Negotiator for Eurasian Conflicts in the former Soviet Union ( an ambassador-level position ) , Deputy Assistant Secretary for European and Canadian Affairs in the State Department , director of European and Soviet Affairs for the U.S. National Security Council , and was on the policy planning staff of the State Department under Colin Powell before and after the invasion of Iraq
1988 Moscow summit meeting
Moscow Summit (1988)
Rudolf V. Perina