What Agreement By The United States Japan Great Britain And France In 1921
Isoroku Yamamoto, who later successfully attacked Pearl Harbor, argued that Japan should remain in the contract. His opinion was more complex, however, because he believed that the United States could overtake Japan by a factor greater than the ratio of 5 to 3, as it had a huge production advantage in the United States, which he had agreed to since he had served at the Japanese Embassy in Washington. After signing the treaty, he said, „Anyone who has seen the Detroit auto plants and the oil fields in Texas knows that Japan does not have the power to have a maritime race with America.“ He later added: „The report works very well for Japan – it`s a contract to limit the other parties.“  He believed that methods other than the explosion of construction would be necessary to seize even the opportunities that may have contributed to his commitment to the Pearl Harbor plan of attack. Many Japanese saw the 5:5:3 report of the ships as another respite from the West, although it can be said that the Japanese had a greater concentration of force than the U.S. Navy or the Royal Navy. He also contributed to the controversy in the high graduations of the Imperial Japanese Navy between the officers of the treaty faction and their opponents of the naval faction, who were also allied with the ultranationalists of the Japanese army and other parts of the Japanese government. For the treaty group, the treaty was one of the factors that contributed to the deterioration of relations between the United States and the Japanese government. Some also argued that the treaty was an important factor in stimulating Japanese expansionism by the fleet group in the early 1930s. The perception of injustice led 1936 to Japan`s renunciation of the second naval treaty of London. In the Treaty on the Four Powers, the United States, France, the United Kingdom and Japan agreed to consult each other before taking action in the event of a future crisis in East Asia. This treaty replaced the Anglo-Japanese Treaty of 1902, which had raised concerns for the United States.
In the years following World War I, American politicians considered Japan the greatest growing military threat. Heavily militarized and seeking its influence and expanding its territory, Japan had the potential to threaten American colonial property in Asia and China`s profitable trade. However, under the 1902 agreement between the United Kingdom and Japan, the United Kingdom could be required to join Japan against the United States if the United States and Japan enter into conflict. By ending this treaty and creating an agreement of four powers, the countries concerned ensured that none were bound to a conflict, but there would be a mechanism for discussion if we crystallized.