In general, considering the 8 U.S. military bases in Tokyo (not Japan, just Tokyo), and in particular, the 31000 sq metre military base in the centre of the city, in Roppongi (prime real estate worth at least $60 m, with a few military helicopters landing/taking off from there every day, and a lot more towards the weekend), IMHO, Japan is an occupied territory not too different from Afghanistan or Iraq. IMHO, the role of Japan in the scheme of things as designed by the US is to hold US debt, giving legitimacy to the piece of paper printed by the Treasury. The entire Toyota drama was about Japan trying to assert it's independence and not follow orders.