Don't take "going to war" literally in this thread. It's meant as an expression only.
I have held off on making further replies here because only a few here understood that the phrase "going to war" was an expression only. Others simply jumped on the bandwagon that this was a literal statement. As I stated - Combat, in any setting, is as ugly as it's unpredictable.
Make no mistake - an armed encounter IS close quarters combat. The term applies. Also, it's a term we must grow comfortable with as legal concealed carriers. Being underprepared to defeat an armed threat is not an option. We would potentially be doing more harm than good. The flip side to this is arming ourselves to the point that might easily be seen as unreasonable. Also, not an option.. We are not vigilantes and cannot be perceived this way.
However, returning to the central point, it pays to consider that 'bad guys (often) have backup'. This means that the threat that is immediately confronting you is greater and more dynamic than you might envision. When threatened by one or more armed assailants, you are already at a significant disadvantage. To counter such a threat, our EDC and possible backup MUST be up to be up to the task. My argument here is that we might factor this kind of information in when deciding on our EDC gear - Spring, Summer, Winter and Fall.
For my money, a Glock 19 or Glock 23 (or similar Weapon) would suffice at least three seasons out of the year. Preferred backup is a G43 in a pocket holster. I also have carried an old S&W Airweight as a back up - Never as primary. Back up is optional but not a terrible idea. Sometimes, you might be able to reach only for your smaller backup - depending on how and where you carry - when the chips are down.