Actually in the Dual Kingdom era the northern state went to war on the Hittites, and got themselves wiped out while Judah stayed out, not to mention the several tribes they wiped out to take over those states. They also served in the armies of other empires, like Egypt's, and of course aiding the Muslim invasions of Spain is how so many Jews ended up there for centuries. The Himyar Kingdom's last two rulers left two steles bragging about their raids into the rest of the Arabian Peninsula and killing 40,000 Christians. Then the Arab Jihad came and we hear no more of them. Jews served the Muslims and their conquistadors well. Zedekiah got run over by Babylonians for failing to cut such a deal with them, though the bible spins it as 'God punishing Zedekiah and the people' for something or other, I forget what. It's part of the racist fiction that the goy are just here to reward or punish Jews and aren't really humans, jus 'acts of God'.