Complex sentence: In the early spring of 1076, Thường Kiệt and Nùng Tông Đán defeated the Song militia of Yongzhou, and during a battle at Kunlun Pass, their forces beheaded the Governor-General of Guangnan West Circuit, Zhang Shoujie (d.1076).
Split into simpler sentences: In the early spring of 1076, Thường Kiệt and Nùng Tông Đán destroyed the Song militia of Yongzhou. During a battle at Kunlun Pass, their forces beheaded the Governor-General of Guangnan West Circuit, Zhang Shoujie (d.1076).