I tried playing as a Japanese daimyo(Hosokawa) and it seemed to be going ok, made my allies and attacked a neighbor with reconquest. One of my allies(Takeda) was attacked by Imagawa, and suddenly the Shogun decides to enforce a vassal's(Ouchi) claim on one of my provinces.. Is that WAD? Should the Shogun really be willing to arbitrarily attack one of their own vassals because they are busy?