Did the American government know Pearl Harbor was coming?

Seventy-five years after the Japanese attack on Pearl Harbor, some Americans have never stopped believing that President Franklin Roosevelt let it happen in order to draw the U.S. into World War II. "It's ridiculous," says Rob Citino, a senior researcher at the National World War II Museum in New Orleans. read more

Declassified Memo Hinted of 1941 Attack More Three days before the Dec. 7, 1941 Japanese attack on Pearl Harbor, President Roosevelt was warned in a memo from naval intelligence that Tokyo's military and spy network was focused on Hawaii, a new and eerie reminder of FDR's failure to act on a basket load of tips that war was near. read more

So the American government knew an attack on Pearl Harbor was coming. No. The Japanese government was not in the habit of informing its diplomats of planned military strikes in detail. read more