Wendigo
Michael Noire
Not specific enough. The fact that people were killed in war does not describe whether or not those people were appropriately capable of defending themselves. It also does not take into consideration whether those people were being marched to their deaths with threat of execution.
If you are advocating laying down one's arms so that a tank may roll over and smear your intestines all over the streets, sorry, not going to agree with you. Ever.
Seems like every time words come out of you, they constitute a straw man fallacy. I wonder whether it's contagious...
Anyway, since it's not strictly speaking an important referent, I'm just going to refer you to this guy:
http://www.ibiblio.org/hyperwar/USA/ref/Casualties/Casualties-Intro.html
Looks like there's a lot of detail there. Hell if I know or care whether it's properly researched. You can read through it and get back to me, though, if you want.
Since these are just for the US, of course, that's near zero civilians who just happened to live in a war zone, or under the thumb of a totalitarian regime.
you are missing the bigger argument at hand. One of the main arguments in gun control today is that arms like AR-15s can't defend civilians against drones, jets, tanks, and bombs. The counter argument that many pro gun advocates make is that the weapons wielded by the revolutionary war had to be sufficient to fight against their enemies, so when people make the argument that the right to bear arms is about muskets, the reverse is that the British were also using muskets. The idea that in modern warfare, the people wouldn't need weapons compatible to modern militaries is argued against based on the logic that to resist effectively, a resisting force needs to have equipment capable to rivaling the enemy, not just capable of harming defenseless civilians or burglars.
So here's the basic point of any successful resistance movement. Sticks and stones don't stop tanks and bombs. Sticks and stones would be primitive even to the Colonists of Washington's time. The point of arming a populous to defend themselves is best represented in Israel and Cuba. Cuba is tiny, but heavily defended and armed. Israel is tiny but has had to defend itself with military grade technology on multiple occasions.
A stick is generally better than a bare fist, and a rifle is better than a stick, but hey, if you had a LAW rocket, machine gun, or Tank, to defend your people, all the better. My point is something is better than nothing, but when you talk about people getting slaughtered, it's generally because of disproportionate arms qualities on one side or the other. War is hell, and people die in war, and bombs kill indiscriminately. But the important thing to keep in mind is war becomes wholesale slaughter when one side is unable to defend itself against the forces that oppose it. Number is not so important as quality, and equality of arms isn't a numerical balance, as asymmetric warfare in the Middle East can attest.