Never. In 1942 Japan invaded the Philippines, Guam, Wake Island, and two of the Aleutian Islands (Kiska and Attu) which were US possessions at the time. The invasions of the Aleutians were a diversion from the real invasion planned for Midway, but it was stopped. If not for the defeat at Midway, Japan might have been in a position to invade the continental US after invading the Hawaiian Islands and the rest of the Aleutian Islands first, but it never came to that.
1942. Only small parts of the Aleutian islands were occupied by the Japanese forces, when Attu and Kiska were invaded in order to divert American forces away from the main Japanese attack at Midway.
They never did. The attack was unannounced.
Alaska
pearl harbor
For government reasons mostly and they wanted to claim Hawaii.
The attack of Pearl Harbor, Hawaii.
December 7, 1941 at Pearl Harbor, Hawaii.
Hawaii
Honolulu, Hawaii. That's about as much of the U.S. they attacked
The base was at Pearl Harbour, in Hawaii.
because the Japanese bombed pearl harbor which is in Hawaii
He allowed Japan to attack the US at Pearl Harbor, Hawaii
He allowed Japan to attack the US at Pearl Harbor, Hawaii