《后汉书·列传·窦融列传》
窦融等因此出兵，进击封何，大破其军，斩首千余级，得牛马羊万头，谷数万斛，因而依据黄河耀武扬威，以等待光武的到来。
融等因军出，进击封何，大破之，斩首千余级，得牛、马、羊万头，谷数万斛，因并河扬威武，伺候车驾。
Dou Rong and others sent troops to attack Fenghe, defeated his army, cut off more than a thousand heads, captured 10,000 cattle, horses and sheep, and tens of thousands of grains, and then relied on the Yellow River to show off their military might, waiting for Guangwu's arrival.
<s>[INST] Kindly elucidate the central themes in this passage in English: 融等因军出，进击封何，大破之，斩首千余级，得牛、马、羊万头，谷数万斛，因并河扬威武，伺候车驾。 [/INST] Dou Rong and others sent troops to attack Fenghe, defeated his army, cut off more than a thousand heads, captured 10,000 cattle, horses and sheep, and tens of thousands of grains, and then relied on the Yellow River to show off their military might, waiting for Guangwu's arrival.</s>
Kindly elucidate the central themes in this passage in English: 融等因军出，进击封何，大破之，斩首千余级，得牛、马、羊万头，谷数万斛，因并河扬威武，伺候车驾。
user
Dou Rong and others sent troops to attack Fenghe, defeated his army, cut off more than a thousand heads, captured 10,000 cattle, horses and sheep, and tens of thousands of grains, and then relied on the Yellow River to show off their military might, waiting for Guangwu's arrival.
assistant