(Gengxu April 16), May 20, 1970, Mao Zedong published anti-American statement. Reference, 1970, Mao issued a statement "the people of the world to unite and defeat the U.S. aggressors and all their running dogs".

4 May 30, 2009, 70,000 U.S. and South Vietnamese soldiers from southern Vietnam invaded Cambodia. On May 1st, the 2nd, the U.S. resumed bombing of the Democratic Republic of Vietnam, Quang Binh and Nghe An provinces, further expansion of the war of aggression in Indochina. 4, 2011, the Chinese government issued a statement condemning the U.S. government's crimes of aggression.
5 May 20, 2009, Mao Zedong said in its statement: "At present, worldwide, is a climax of the struggle against U.S. imperialism. "I warmly support Cambodia's head of state, Prince Norodom Sihanouk, the spirit of the struggle against the U.S. imperialists and their lackeys. "Chinese people firmly support the Indochina peoples of the three countries and peoples of the world revolutionary struggle against the U.S. imperialists and their lackeys. "Numerous facts have proven that cause enjoys abundant support, Unjust. Weak nation can defeat a strong, small country can beat a big country. Small people of the country as long as the courage to rise in struggle, dare to take up arms, to grasp the fate of their own country, will certainly be able to overcome the aggression of the country. This is a law of history.
21 morning, the convening of the General Assembly of the support of the people of the world 50 million people participated in the struggle against U.S. imperialism. Mao attended the General Assembly, Prince Norodom Sihanouk, was also invited to attend the General Assembly.