Hakatan,
I’m still wondering: Do you believe that it’s a halachic obligation for soldiers to go out with weapons and fight to defend cities where Jews live?
If not, how do you explain שלחן ערוך או”ח הלכות שבת סי’ שכט where it says that even on SHABBOS, even in CHUTZ L’ARETZ, even if the enemies only come to STEAL STRAW & HAY (in a border city) – we are obligated to take arms and fight?