Anglo-american Co-operation in Wartime Britain, 1943

Anglo-American co-operation in wartime Britain , Wikimedia Commons


On November 27, 1941, the U.S. government warned the British government and American military commanders of an imminent war with Japan. American intelligence concluded that a Japanese offensive against the Philippines or South East Asia was most likely.

Was there intelligence that more specifically suggested Pearl Harbor was the likely target?  Doubtful, but debatable.