Don't forget the French Navy at Yorktown. Actual warships, not rowboats with gun-slinging Frenchmen aboard.
"Oppressive dictatorships are certainly not overthrown by gaggles of citizens with personal firearms ..." 
Bravo to your reply!
Sometimes, in a fit of their own importance, some gun-rights supporters speculate what would have happened if the Nazi government had run across armed Jews in Germany when they came to apprehend the Jews. I'll tell you what would have happened: The Nazis would have withdrawn, come back with Schmeissers and gone in, guns blazing.
Now, maybe those Jews would have been called martyrs, but they'd be dead, nonetheless.