 Complete the following phrase:  The Open Door Policy under President McKinley and Secretary of State John Hay guided U.S. policy towards China, as they sought to keep open trade equal trade opportunities in China for all countries. Roosevelt mediated the peace that ended the Russo-Japanese War and reached the Gentlemens Agreement of 1907 limiting Japanese immigration. Roosevelt and Taft sought to mediate and arbitrate other disputes, and in 1906 Roosevelt helped resolve the 