Avi: ” Who says that they are not allowed to have a draft? On the contrary, it is a Torah obligation to join the IDF Rambam Hilchot Melachim (5:1-2 and 7:4).”
Having a draft for an army that is run according to the Torah might be okay. The problem is that the army is not run according to halacha so it is assur to draft people into an army that is not run according to halacha and in which they will be oiver on issurim.