What Caliber should our Armed forces be carrying as their side arm?
.45 ACP
why? Tradition.
What caliber are our troops carrying?
9mm Luger
Is that likely to change?
no
What Caliber should our Armed forces be carrying as their side arm?
Everyone has missed the point of why the 9X19 is the standard issue. NATO!!! It is the predominate military sidearm round throughout the world!!!
As a Member of the armed forces I have carried the M-9 and M-9A1 I am confident that my skills will overcome any minor shortcoming in the 9mm NATO issued cartridge. That being said I can go to any country, outside of the Warsaw Pact, and get plenty 9mm rounds. Also the USSR made a bunch, as well, to stick in our dead GI's mags.
...a pistol is only as good as the availability of ammo. And there is tons of 9mm all over the world that is made by just about everyone.
Not quite true... two of us stated that 9mm was everywhere....as noted below..