@siderea @skyfaller Absolutely possible and a fair point!
I suggested occupying low-population areas to put a lot of red on the map and attract military effort to those spots, so the war happens on US soil instead of Canadian soil.
That is probably not a great strategy from the American side, but I think popular opinion would insist on it.
It also gives something to negotiate over: you return southern Ontario, we return the Alaska panhandle or whatever.