“depend on earthly forces such as the IDF and not in a belief that, no matter what, God will protect it because they know what God will do.”
These are not IMHO mutually exclusive. But beside that, God HAS SAID what He will do. God has told us how this ends (who wins). We choose our side and we do our labor.
God told Jean D’Arc: “YOU fight the battle, I will give you the victory .” The forces on earth and the forces of Heaven will meet somewhere, probably soon.
Yes, God has said what He will do but He has not said "when" or which "this" is this.
"This" was not the sacking of Jerusalem and the destruction of Solomon's Temple in 586 B.C.
"This" was not the sacking of Jerusalem and the destruction of the Second Temple in 70 A.D.
"This" was not the destruction of most of Western Europe's Jewish population in 1940's.
"This" might not be the destruction of the political State of Israel in 2012 A.D.
"This" might not occur until the Second State of Israel or the Third State of Israel (France is already up to the Fifth Republic) does battle in the 23rd Century.
Do not presume that you know what God's plans are for the 21st Century.