Right, I am not in the camp that says WWII “began” on 12-7-1941.
Just as Gulf War I came to a pause in 1991, only to see the peace repeatedly broken by Saddam Hussein’s violations of the treaty.
And we are still in Korea facing hostility.
I’m not in the December 7th camp either. If I had to pick a date I would say September 1st 1939 since that set in motion a series of events that had, within days, the British and French at war with Germany. With most of the dominions following suit shortly after the war really became global at that point and hence a “world” war. But like I’ve said, there are some real good arguments for some of the other dates as well.