The other issue at hand is Japan is a (largely) resourceless chain of islands for a lot of things required to function, including space.
The southern resource area was decided to be more easily taken over (vs the north, which was a Japanese Army plan and included Siberia, etc) which the expansion and war was meant to give Japan room to defend their interests.
Attacking Pearl Harbor was Japan trying to both work with Hitler and remove the US as a significant power to challenge their expansion to the south. The problem (fundamentally) was a lack of understanding of how the US would react, and we had the same problem with Japan later.
The other issue at hand is Japan is a (largely) resourceless chain of islands for a lot of things required to function, including space.
The southern resource area was decided to be more easily taken over (vs the north, which was a Japanese Army plan and included Siberia, etc) which the expansion and war was meant to give Japan room to defend their interests.
Attacking Pearl Harbor was Japan trying to both work with Hitler and remove the US as a significant power to challenge their expansion to the south. The problem (fundamentally) was a lack of understanding of how the US would react, and we had the same problem with Japan later.