Bleach's final story arc, the Thousand-Year Blood War, tells the story of the Soul Society's final battle against their sworn enemies, the Quincy tribe. In the Thousand-Year Blood War anime's first cour back in Fall 2022, the Quincy empire, the Wandenreich, enjoyed an overwhelming advantage, partly because the Quincy were prepared and were totally united. By cour 2, however, that advantage is unraveling.
Source:https://www.cbr.com/quincy-empire-destroyed-in-bleach-tybw/