In the religious Zionist world the BIGGEST mitzva in the Torah [for many] is serving in Tzahal. Many a parent gets teary eyed when their child joins the army or at various ceremonies [and "lav davka" when their child goes to Yeshiva]. ושירות בצה"ל כנגד כולם.
In the Charedi world, one of the first things a child does after throwing away עול מלכות שמים [after buying a new wardrobe and buying a smartphone] is go to the army. That is their ticket out of Torah and Jewish observance. The army for the Charedim is a staunchly secular establishment that puts one's soul in mortal danger.
This is significant to know for many reasons. One is to understand how from the same text [Torah in this case] people can come to radically different conclusions. Another is to appreciate how impossible it is for Charedim to ever do what the non-Charedi world dreams they do i.e. join the army en masse.
Never.
