If you're looking for anime similar to Mobile Suit Gundam: Thunderbolt - Bandit Flower, you might like these titles.
Shortly after being rescued off the Himalayas, Federation Ensign Shiro Amada is accused of espionage due to his encounter with Zeon's top-secret mobile armor. Intelligence officer Alice Miller is assigned to investigate on Shiro's whereabouts during his disappearance. Her documented findings will determine whether or not Shiro is a traitor, and what his fate will be as commander of the 08th MS Team.
The Kingdom of Arandas alliance and the Countries Unification of Ingelmia have been at war for many years. The situation has been at a stalemate across the fortress of the Great Wall, which has never been penetrated since the foundation of Arandas. The gate to the fortress has remained firmly closed, but when it creaks open, the complexity of war starts to change dramatically.