 Guo Songling originally had command of Yan Zongzhou's artillery brigade, and only when the war had begun was the artillery brigade temporarily reassigned to the 1st Army.Artillery Regimental Commander Chen Chen (陈琛) subsequently relieved Yan Zongzhou of his command, with the approval of Jiang Dengxuan and Han Yichun, commander and deputy commander of the 1st Army.Upon hearing his classmate Yan Zongzhou's complaint, the enraged Guo Songling personally relieved Chen Chen of command and gave it back to Yan.