This is not crimes averted. Your defensive gun definition is kept broad enough to likely involve military use.
I mean in the HEADING from the Wikipedia, whom you quote wrt DGU’s, is this:
“Defensive gun use (DGU) is the use of a firearm in self-defense or defense of others. The frequency of defensive firearms incidents, and their effectiveness in providing safety and reducing crime is a controversial issue in gun politics and criminology.[1]:64 Different authors and studies employ different criteria for what constitutes a defensive gun use which leads to controversy in comparing statistical results. Perceptions of the number of DGUs dominate discussions over gun rights, gun control, and concealed carry laws.”
I can recall zero cases in the news where armed civilians helped stave off a Burrito Bandit.
