Health,
Stop with your anti-Zionist lies! You are correct that the withdrawals from Gaza and southern Lebanon (FYI, we still control Yehuda v’Shomron – I am, in fact, writing these lines in this area) were wrong but that was due to the venality of certain “leaders” – with the acquiescence of the “Chareidi” parties. In an any case, there is a mitzva to defend Am Yisrael (Rambam, Hilchot Melachim 5:1).
Moreover, a person who accepts the benefits of citizenship, such as welfare payments, must also accept the obligations of citizenship. There might be room to defer someone who is truly learning (and not just listed) but at least he should say the “mishe berach” for the soldiers and give shiurim. Those who are cohanim can be meshuchei milchama.I refer you to Rav Eliezer Melamed’s essay “Judaism: The Mitzvah to Join the IDF”.