simcha613:
The same question could have been asked by parents who wanted to know why other parents didn’t feed their children to the molech idol when that idol was in vogue. Regardless, may Hashem please keep your children and all His children safe and well.
You also left out the context here that the chareidim are the native Jews of Ottoman-controlled Palestine while the Zionist interlopers chose to invade and fight the British to get them to leave so that they could pretend to have sovereignty and their forever wars as all the gedolim said would happen. The Zionists chose this fight – and against the wishes of the chareidim living there at the time the Zionists invaded – so, the Zionists can send their idolaters to that fight.
Finally, you left out that joining the Zionist army means converting from Judaism to Zionism and being compelled to violate one or more of the gimmel chamuros for which one must give up one’s life rather than violate.