The Gentlemen's Agreement of 1907 was an informal agreement between the United States and Japan aimed at easing tensions over immigration. The U.S. government agreed not to impose formal restrictions on Japanese immigration, while Japan promised to limit the number of its citizens emigrating to the U.S. This arrangement was a response to growing anti-Japanese sentiment in America, particularly in states like California. The agreement was never a formal treaty, but it reflected the diplomatic relations between the two nations during that period. It helped to reduce the number of Japanese immigrants, but it also highlighted issues of racial discrimination and immigration policy in the United States, influencing future legislation like the Immigration Act of 1924.