후연
Early in his reign, Tuoba Gui had often met opposition from powerful individuals within his own state, and had to rely on Later Yan aid to quell the rebellions. For example, in 386, when Tuoba Gui faced a rebellion led by the Xiongnu chief Liu Xian () and Tuoba Shiyijian's youngest son Tuoba Quduo (), he turned to Later Yan for help, and Later Yan forces, commanded by Murong Chui's son Murong Lin the Prince of Zhao, helped Tuoba Gui to put down the rebellion. A 387 joint operation between Northern Wei and Later Yan finally crushed Liu Xian's power.