World communism ideology could not admit that, to counter the influence of capitalist countries. It also supported revolutionary socialism around the world to continue to work toward world communism, however distant it might be. Thus it backed the 26th of July Movement in the Cuban Revolution, the North Vietnamese in the Vietnam War and the MPLA in the Angolan Civil War. The domino theory of the Cold War was driven by this intent as anti-communists feared that isolationism by capitalist countries would lead to the collapse of their self-defense. The reform and opening of China and the restructuring and openness of the
Canada in the Cold War middle power role in international affairs, and pursued diplomatic relations with Communist countries that the US had severed ties with, such as Cuba and China after their respective revolutions. Canada argued that rather than being soft on Communism, it was pursuing a strategy of "constructive engagement" whereby it sought to influence Communism through the course of its international relationships. Canada had far less of the anti-Communist hysteria that had afflicted the United States. The United States wished the Canadian government would go further, asking for a purging of trade unions, but Canada saw this as American hysteria, and left the