Was Japan too greedy in its expansion?

Were the Japanese too greedy in their expansion?

The Japanese Army in particular became overconfident, while chronic fuel shortages encouraged an expansionist solution to material weakness.

Japan as a whole cannot simply be called greedy. The more acute problem lay in the Japanese Army, whose leaders became punch-drunk on expansion and increasingly believed they could take whatever they wanted. Japan already possessed tanks and other useful systems but lacked the fuel to employ them on the required scale. Synthetic production and protected refinery infrastructure could have supported a less expansion-dependent strategy. The exchange connects operational overconfidence with the material shortages that expansion was supposed to cure.