In the first two decades of the twentieth century, the relationship between the United States and Japan was marked by increasing tension and corresponding attempts to use diplomacy to reduce the threat of conflict. Each side had territory and interests in Asia that they were concerned the other might threaten. U.S. treatment of Japanese immigrants, and competition for economic and commercial opportunities in China also heightened tensions. At the same time, each country’s territorial claims in the Pacific formed the basis for several agreements between the two nations, as each government sought to protect its own strategic and economic interests.
