It seems Protectorate doesn't have anything to do with protection. I am STILL at war with the Germans... maybe a good 20-30 turns after the deal with Gaul (which still stands). I finally broke their back last night and took two provinces with a massive army of upgraded Chosen Swordsmen and Chosen Archers. However, just as I was ready to exploit my breakthrough and make massive gains, the Brutii attacked me, causing war with all Roman factions. Once again I find myself in a two-front war without sufficient troops to fight both at once. Not once this entire time has Gaul gone to war with Germany or any Roman faction. Shouldn't a protectorate REQUIRE the patron faction to protect the subserviant one?