Today I watched Tora Tora Tora.....
Roosevelt imposed sanctions against Japan cutting of raw materials to their manufacturing economy
Obama imposed sanctions that have imposed hardship on the Russian economy.
Japan absorbed Indo China and the east Indies and attacked Pearl Harbor
Russia lacks the capacity for military projection
They have nukes and a gas pipeline that supplies Europe? Cyber attacks? Financial war? They are buying a ton of gold along with China and India.
Every time I see Pooty Poot I think a wounded bear is a very dangerous creature.
The one I think you think you're referring to was in July 1941 after Japan, through a deal with Hitler, took over French Indochina, thereby threatening both the Philippines and British Malaya (and the Straits of Malacca). Only an idiot would have let Japan keep going. FDR correctly shut off all further oil sales (although quit a bit still was shipped as late as Dec. 1941), and froze Japanese assets, which meant they couldn't buy more US oil. Nobody forced them to do anything. Quite the contrary, I think FDR was slow and weak in his response. He should have cut off all oil after the Mukden incident. That would have nipped the Rising Sun in the bud, so to speak.
Then, as now, we don't "impose hardships" on anyone. They impose it on themselves. It's like you're living next door to a murderer and you choose not to do business with him. It's not your fault he's a creep and a thug.
ZEro, on the other hand, has not acted nearly tough enough with Putin. He should have forced him back out of the Crimea and immedately re-nuked the Ukraine.