田悦
In spring 781, Li Baochen died. As there was an alliance between Weibo, Pinglu, Li Baochen's Chengde Circuit (成德, headquartered in modern Shijiazhuang, Hebei), and Liang Chongyi's Shannan East Circuit (山南東道, headquartered in modern Xiangfan, Hubei) for the military governors to pass their positions to their descendants, Li Baochen had previously supported Tian's succession. Tian thus in turn endorsed Li Baochen's son Li Weiyue to Emperor Dezong and requested that Li Weiyue be allowed to succeed Li Baochen. After Emperor Dezong refused, the four circuits readied for war against the imperial government, despite internal oppositions. In Tian's case, for example, his deputy Tian Tingjie (田庭玠, Tian Chengsi's cousin) opposed war against the imperial troops, but while Tian Yue remained respectful to Tian Tingjie, he did not follow Tian Tingjie's suggestion. Tian Tingjie subsequently resigned and soon thereafter died in sorrow. Tian Yue subsequently sent 5,000 soldiers, commanded by his officer Meng You (), to Chengde to aid Li Weiyue. Meanwhile, Tian Yue also personally decided to attack two prefectures near his realm held by the imperial government — Xing (邢州, in modern Xingtai, Hebei) and Ci (磁州, in modern Handan). (Xing and Ci Prefectures had been part of Zhaoyi Circuit (昭義, then headquartered in modern Anyang, Henan)), the realm of another military governor, Xue Song, but after Xue's death in 773, Tian Chengsi seized most of Zhaoyi and merged it into Weibo, although the imperial government took Xing and Ci Prefectures and merged them into Zelu Circuit (澤潞, headquartered in modern Changzhi, Shanxi), later renaming Zelu to Zhaoyi.) Tian Yue personally sieged Linming (臨洺, in modern Handan) and had his officer Kang Yin () siege Xing Prefecture. He also had another officer, Yang Chaoguang () set up obstacles to try to block any relief forcing coming from Zhaoyi's headquarters at Lu Prefecture (). (These series of sieges were against the advice of the experienced officer Xing Caojun (), who suggested to Tian Yue that he personally make sure first that relief forces could not get through before putting Xing and Ci Prefectures under siege; otherwise, if imperial troops arrived while he was still sieging those prefectures, he would be bringing destruction on himself.) In fall 781, with Tian Yue still sieging Linming, the joint forces of three generals loyal to the imperial government — Ma Sui the military governor of Hedong Circuit (河東, headquartered in modern Taiyuan, Shanxi, Li Baozhen the military governor of Zhaoyi, and Li Sheng the commander of the imperial Shence Army () — arrived and attacked, first defeating and killing Yang and then defeating Tian at Linming. Tian's army suffered more than 10,000 deaths, and he fled back toward Weibo's capital Wei Prefecture. He sought emergency aid from Chengde and Pinglu, and Li Weiyue and Li Na (Li Zhengji's son — Li Zhengji having died around the same time and entrusted the circuit to Li Na) each sent aid. However, in spring 782, at another battle on the banks of Huan River (洹水, flowing through modern Handan), the joint Weibo/Chengde/Pinglu forces were again crushed by the joint forces of Ma, Li Baozhen, Li Sheng, and Li Qiu () the military governor of Heyang Circuit (河陽, headquartered in modern Jiaozuo, Henan), suffering over 20,000 deaths.