Could Japan have taken Midway and Hawaii at the start of the Pacific War?
Short answerIt was possible with army-navy cooperation, enough landing ships, and a simultaneous surprise assault, though long-term retention remained a much harder problem.
NotesAn opening assault on both Midway and Hawaii was physically possible if the Japanese Army supplied troops and cooperated with the navy. The United States was not structured to react immediately to simultaneous landings during the surprise attack. Midway would then become much harder to sustain without Hawaii, while a concurrent strike on the Panama Canal could deepen the disruption. This high-risk counterfactual depends on coordination and surprise; it does not claim that Japan could hold the islands indefinitely.