Each side considered itself „responsible,“ but the more nuclear capabilities countries had, the less the superpowers would be able to control events. There was also the fear of nuclear accidents. During the period of détente, a number of political agreements were reached. The Helsinki Final Act was an agreement signed by 35 nations, which concluded the Conference on Security and Cooperation in Europe in Helsinki, Finland. The multifaceted law addressed a number of important global issues, which had significant implications for the Cold War and U.S.-Soviet relations. The second basket promised scientific and technological cooperation, facilitated trade contacts and industrial cooperation, connected transport networks and increased the flow of information. Ford told the delegation of Americans of European origin in July 1975 that conferences to follow up the Helsinki Accords were held in Belgrade, Yugoslavia (now Serbia) in 1977-1978; Madrid, Spain, 1980/83; and Ottawa, Ontario, Canada, in 1985. The fall of communism in Eastern Europe in 1989-1990 and the imminent reunification of Germany necessitated a second CSCE summit to formally end the Cold War: this summit was held in Paris in November 1990. According to Cold War scholar John Lewis Gaddis in his book The Cold War: A New History (2005), „Leonid Brezhnev was eager to see the audience he would win,“ recalls Anatoly Dobrynin.