Bleach: Thousand-Year Blood War's anime started on a brutal note, with the Wandenreich, or the Quincy empire, launching an incredibly successful invasion of the Soul Society in the first cour back in Fall 2022. At the time, the Quincy empire seemed invincible, but partway through the second cour, the pendulum swung in the other direction. Now, the Sternritter are struggling, and they can only blame themselves.
Source:https://www.cbr.com/bleach-quincy-empire-own-worst-enemy/