On July 7, U.S. President Donald Trump pushed back the tariff deadline from July 9 to August 1. At the same time, Trump sent a series of letters to countries warning of higher tariffs if they fail to strike a deal with the U.S. Surprisingly, Japan, which has a history of bowing to U.S. pressure, has now refused to do so. Japanese Prime Minister Shigeru Ishiba has stated that Japan will not make "easy concessions," and that he will firmly defend Japan's national interests. Is this the end of the U.S.-Japan "plastic friendship"? Why has an obedient "ally" turned against the U.S.? Take a look.