Who was instrumental in implementing the "Gentlemen's Agreement" with Japan?

The implementation of the "Gentlemen's Agreement" with Japan was largely due to the efforts of Theodore Roosevelt during his presidency from 1901 to 1909. This informal agreement stemmed from growing tensions between the United States and Japan, particularly in relation to immigration and the segregation of Japanese students in San Francisco schools.

Roosevelt mediated the situation to reduce these tensions and reached an accord with the Japanese government. Under the terms of the agreement, Japan agreed to limit the emigration of its nationals to the United States, while the U.S. agreed to address Japan’s concerns over discrimination against Japanese residents in America. This was a significant diplomatic effort that reflected Roosevelt's commitment to a more proactive and diplomatic foreign policy, particularly in relation to Asian powers.

The context of this agreement is crucial, as it represented a turning point in U.S.-Japan relations, showcasing early attempts at managing international immigration issues and racial tensions. Roosevelt's role in negotiating the agreement highlighted his broader goals of expanding American influence in Asia and establishing the U.S. as a dominant power in the Pacific region.