Reykjavík Summit continued, and U.S.–Soviet relations – already strained by the failure of the Geneva Summit the previous year – were further strained by the Daniloff–Zakharov espionage affair. At Reykjavík, Reagan sought to include discussion of human rights, emigration of Soviet Jews and dissidents, and the Soviet invasion of Afghanistan. Gorbachev sought to limit the talks solely to arms control. The Soviets acceded to the "double-zero" proposal for eliminating INF weapons from Europe, as initially proposed by President Reagan in November 1981 (INF denoting "Intermediate-Range Nuclear Forces" as distinct from ICBMs, or intercontinental ballistic missiles). The Soviets also proposed to eliminate 50%
Presidency of Ronald Reagan treaty also established an inspections regime designed to ensure that both parties honored the agreement. In addition to the INF Treaty, Reagan and Gorbachev discussed a potential strategic arms treaty, known as START, but SDI continued to be a major point of contention. In May 1988, the Senate voted 93-to-5 in favor of ratifying the INF Treaty. Though it was attacked by conservatives like Jesse Helms, the INF Treaty provided a major boost to Reagan's popularity in the aftermath of the Iran–Contra Affair. A new era of trade and openness between the two powers commenced, and the U.S. and the