Very interesting in how to compare the modern IDF and ancient Israelite armies. Both were semi-religious in a semi-religious state. Both had refusniks (Saul's Jewish troops would not destroy a Levi village that housed David, so he had a Phillistine soldier of fortune do it). Both also had non-Jewish soldiers who fought for Israel (ancient Israel had many mercenaries from the Phillistines, Caananites, Hurrians, Amurru, and so on; modern IDF has Druzim, Circassians, Christians, etc)
The parallels are pretty amazing.