《新唐书·列传·卷十四》
时逢游军数百骑自南山返还，袭击其背后，三座营垒之兵大声呼叫，奋力出击，桑显和兵马溃败而逃，尽数虏获其众。
会游军数百骑自南山还，击其背，三壁兵大呼，奋而出，显和遂溃，尽得其众。
It happened that hundreds of cavalry of the travelling army were returning from the Southern Mountains, attacking their rear, the soldiers of the three camps shouting loudly, charging out vigorously, Sang Xianhe's soldiers defeated and fleeing, and all of his group being captured.
<s>[INST] Translate the following Classical Chinese text into English: 会游军数百骑自南山还，击其背，三壁兵大呼，奋而出，显和遂溃，尽得其众。 [/INST] It happened that hundreds of cavalry of the travelling army were returning from the Southern Mountains, attacking their rear, the soldiers of the three camps shouting loudly, charging out vigorously, Sang Xianhe's soldiers defeated and fleeing, and all of his group being captured.</s>
Translate the following Classical Chinese text into English: 会游军数百骑自南山还，击其背，三壁兵大呼，奋而出，显和遂溃，尽得其众。
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It happened that hundreds of cavalry of the travelling army were returning from the Southern Mountains, attacking their rear, the soldiers of the three camps shouting loudly, charging out vigorously, Sang Xianhe's soldiers defeated and fleeing, and all of his group being captured.
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