In foreign policy, Reagan sought to achieve “peace through strength.” During his two terms he increased defense spending 35 percent, but sought to improve relations with the Soviet Union. In dramatic meetings with Soviet leader Mikhail Gorbachev, he negotiated a treaty that would eliminate intermediate-range nuclear missiles. Reagan declared war against international terrorism, sending American bombers against Libya after evidence came out that Libya was involved in an attack on American soldiers in a West Berlin nightclub.