 The cavalry group was also to cover the flank of the other Fengtian forces, and mop up any enemy left behind.When the situation permitted, the cavalry would also strike the Zhili force's flank by entering the Great Wall via Xifengkou (喜峰口) and/or Gubeikou passes.Finally, the Fengtian general reserve would be stationed between Xingcheng and Suizhong county, to guard Jinzhou.