Nothing really to apologize for. In August 1941, FDR cut them off from oil. He had probably moral reasons, but nonetheless, he cut them off from civilization’s lifeblood (the US was the Saudi Arabia of that time, big oil exporter).
His military said . . . the only place to get oil is Indonesia and for us to do that, the US Pacific Fleet must be neutralized.
So they attacked — and apparently only a snafu prevented them from delivering a declaration of war a few minutes before the attack.
They fought. They lost. Happens all the time. No need to apologize.
The Japanese Empire invaded French Indochina, replete with their usual atrocities and war crimes - powered by American oil, and using lots of American manufactured goods. Congress passed the law authorizing the President to restrict exports. Although the threat was very real, he did not actually cut off the oil.
I am pretty sure that the Japanese were sorry about Pearl Harbor though:
That's what Obama will apologize for.
Ah, so this is the reason Japs killed 20 million chinese. They needed oil. Presumably it's also the reason they vivisected prisoners. They needed oil. American airmen were vivisected at a Japanese medical school. This latter event proves that even Japan's finest, such as their med students and doctors, were sick in the head.