I thought of that, but to get the ships into Lake Champlain would require either permission of the Canadians or a declaration of war.
Now, of course, a declaration of war on Canada is not like a declaration of war, say, on Belize. Belize actually has an Army. Don't know about a Navy, but Canada has no Navy, so they are pretty even there.
What would we want from Canada? How about we give them Maine and Vermont in return for everything west of Ottowa? Sounds right to me. Up yours Jeffords and Leahy!!!
As a theorist you are good, but you need some geography help. Lake Champlain is accessible through the Hudson-Champlain Canal. We already have a WWII destroyer sitting in Albany. Maybe just a simple recommissioning would send it on its way.