More have died from civilian gun wounds since 1968...

...than have died in all the wars in US history, from all causes. Sobering paragraph from Politifact:

There have been 1,516,863 gun-related deaths since 1968, compared to 1,396,733 cumulative war deaths since the American Revolution. That’s 120,130 more gun deaths than war deaths -- about 9 percent more, or nearly four typical years worth of gun deaths. And that’s using the most generous scholarly estimate of Civil War deaths, the biggest component of American war deaths.