How has tjaden gotten even with himmelstoss at the end of basic training in all quiet on the western front?

At the end of basic training in "All Quiet on the Western Front," Tjaden gets even with Himmelstoss by participating in a collective act of revenge against the cruel training officer. After a night of drinking, Tjaden and some of his comrades ambush Himmelstoss, physically overpowering him and giving him a taste of the humiliation he inflicted on them during training. This act symbolizes their rebellion against authority and the dehumanizing training they endured.