A battle happened between the states of Qi and Wei in the warring states period. In 342 B.C, the state of Wei attacked the state of Han, and Han turned to Qi for help. Again Tian Ji and Sun Bin acted as co-commanders of the Qi army to save Han. Sun Bin ordered his soldiers to make less stoves day by day. As Pang Juan, general of Wei, saw this, he judged the soldiers of Qi were leaving their army and decided to pursue them. When Pang Juan arrived in Maling, his army again received a surprise attack. Seeing his army defeated under the Qi arrows, Pang Juan killed himself. Also killed in that war was Prince Shen of Wei. The power of the state of Wei decreased considerably after this battle.