
The wind and sand in the desert have dimmed sunlight;
With red flags half unfurled we go through the camp gate.
North of River Tao, after nocturnal fight,
Our vanguards have captured the chief of hostile State.
Wang Changling lived during the High Tang period, an era of illustrious frontier achievements and soldiers devoted to duty. From Emperor Taizong to Emperor Xuanzong, the Tang dynasty engaged in a protracted tug-of-war spanning a century with peoples like the Tibetans and Turks along the northwestern frontier. The region around the Tao River (in present-day Gansu) was precisely the frontline of contention between Tang and Tibetan forces. Wang Changling traveled extensively in the northwestern frontier regions in his youth, experiencing frontier life firsthand.
大漠风尘日色昏,红旗半卷出辕门。
前军夜战洮河北,已报生擒吐谷浑。