The United States advocated the Open Door policy because it wanted to control all trade going in and out of China. it wanted all foreign powers to have the same chance to trade with China. it wanted to help China remain sovereign.

What was the Open Door policy? The Open Door policy was a statement of principles initiated by the United States in 1899 and 1900. It called for protection of equal privileges for all countries trading with China and for the support of Chinese territorial and administrative integrity.

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