That law defines the Militia as:
"all able-bodied males at least 17 years of age and, except as provided
. . .
(2) the unorganized militia, [ ] consists
So couldn't we just call up the "unorganized militia who have guns and send them to Afghanistan? If not why not? The ownership of a gun is not a suspect class. It's not immutable.
And for the @UNGeneva folks concerned about child fighters NB all US 17 year-old boys are in our #unorganizedmilitia. 🙄✌️ @davidhogg111 #MAGA #MoscowMitch @SenateGOP @NRA @ChrisMurphyCT