Economic competition in China was another issue that increased tensions between the U.S. and Japan in the early twentieth century. In the Ishii-Lansing Agreement of 1917, the U.S. acknowledged that Manchuria was under Japanese control and Japan agreed not to place limitations on U.S. commercial opportunities elsewhere in China. Ultimately, the Ishii-Lansing Agreement was cancelled. In 1919, Japan and U.S. fought again during the League of Nations negotiations. The U.S. refused to accept the Japanese request for a racial equality clause or an admission of the equality of the nations. By the early 1920s, Japan and U.S. were on bad terms.
Do you need a sentence about what happened from 1920s until 1941. Should you mention WWI?
Do you need a sentence about what happened from 1920s until 1941. Should you mention WWI?