 Pang instead joined General Feng Yuxiang's Second Army Group and became a division commander in Feng's units.He fought with courage and distinction for Feng Yuxiang in the Central Plains War, but when General Zhang Xueliang, Commander-in-chief of the Northeastern Border Defense Army, formerly known as the Fengtian clique declared himself for Chiang Kai-shek, the anti-Chaing forces were quickly defeated.Pang again switched sides and once again declared support for the Nationalist Government who appointed him as commander of the 40th corps.