During the Cold War, the "lessons" of appeasement were cited by prominent conservative allies of Reagan, who urged Reagan to be assertive in "rolling back" Soviet-backed regimes throughout the world. The Heritage Foundation's Michael Johns, for instance, wrote in 1987 that "seven years after Ronald Reagan's arrival in Washington, the United States government and its allies are still dominated by the culture of appeasement that drove Neville Chamberlain to Munich in 1938." Some conservatives even compared Reagan to Chamberlain after his withdrawal of the Multinational Force in Lebanon following the 1983 Beirut barracks bombing.