I have almost no sympathy for Tyuule. "Why won't anyone help me?" Yeah you lost your family and people to slavery but you weren't an innocent, you were a queen of a warring race. She clearly had access to spies that she could issue orders to in proximity of the JSDF and instead of acting as an insider in the palace right next to the prince she tried to incite more conflict. For that matter at this point she was a trusted slave that could have caused his death way early on by placing a pillow over his face when he was passed out drunk.
As far as the guerrilla attack on the JSDF, why aren't they disarming all the civilians they are rescuing until they reach their destination. Since they have acquired uniforms and weapons from the ambushes, they need to start using word/color of the day challenges in Japanese to avoid being caught off guard by the princes faction disguised as JSDF troops.