You have inadvertently touched on the primary reason that I donot belong to any organized religion. It seems that in war, both parties pray to God for help. Frankly, If I were God, I would not help either side to win. I would try to prevent the confrontation, but once started, I would be a spectator.
Just a thought. Not a condomnation of religion. I believe war is or should be a non-religious enterprise. Especially when both sides are praying for victory.
But thats just it...we're not God. The Jews are Gods chosen people. If you beleive what the bible says He is not neutral on this dispute. Read the Book of Romans Chapters 9-11 to see what God has planned for Israel.