aloha this embargo was placed in 2001 because japan wouldn't sell electronics to the us
July 26, 1941
mid 1941
Communications were watched/screened; seaports and airports enforced the embargo.
I believe the final straw was an embargo of steel (iron scrap) sales to Japan.
Japan's incursion into Manchuria, the US embargo of oil to Japan and the attack by Japan on the US Fleet at Pearl Harbor.
The US imposed an oil embargo on Japan on August 1st, 1941 to motivate Japan comply with the US demands for Japan to leave Manchuria and stop the imperialism and murders.
The US put an embargo on steel, oil, etc. headed for Japan. Can't fight a war without those items.
they stopped them from trading with other countries. Oil embargo, which weakened Japan.
Do you mean, "What did the U.S do to japan before peal harbor?" and if so, the U.S imposed a trade embargo on Japan because Japan had invaded Indonesia. The trade embargo cut Japan's oil supplies quite a bit.
The US had and Embargo Act where the Us didn't give the japanese oil which was vital to the japanese.
Established military bases in French Indochina