Would Dutch neutrality let Japan keep buying East Indies oil and avoid invading the colony?
Short answerProbably not; Japan's material shortages and imperial ambitions still pointed toward taking control of the Dutch East Indies.
NotesA Japanese move against the Dutch East Indies remained likely even if Germany continued to recognize Dutch neutrality. Japan needed oil, scrap metal, hard currency, and other critical materials, while its wider policy aimed at controlling a regional empire. The occupation of French Indochina shows that formal European neutrality did not guarantee immunity. The Dutch position differed militarily because the government and much of its naval strength continued the war from the East Indies, making a quiet occupation less feasible than in disarmed French territory.