Eighty-four years ago, on a Sunday like today, naval aircraft of the Empire of Japan attacked the US Pacific fleet at anchor in Pearl Harbor, Hawaii. They sank several major ships, bombed the airfield, killing and wounding thousands. Then-President Roosevelt memorably described it as "a day that will live in infamy."
It was brilliant tactics, but catastrophically bad strategy. Japan won the battle but lost both the war and their empire. Their surrender was unconditional.
We need to not let this sort of sneak attack happen to us again.