前言唐代史籍所载,7世纪下半叶,安西都护府自西州(高昌)移至龟兹城,并辖龟兹、焉耆(碎叶)、疏勒、于阗四军镇。与此同时,安西四镇也面临着来自西突厥、突骑施和吐蕃的军事挑战(争夺)与威胁。初期,由于唐王朝在安西四镇防御力量的薄弱,使得唐与西突厥、突骑施、吐蕃的 Preface The Tang Dynasty historical records, the second half of the seventh century, An Xidu Prefecture from Xizhou (Gaochang) moved to the city of Qizi, and administer Qiuci, Yanqi (broken leaves), Shule, Yu 阗 four military town. In the meantime, the four towns of Ansi also face military challenges (scrambles) and threats from the Western Turks, Kashgar and Tubo. Initially, due to the weakness of the Tang dynasty’s defense forces in the four towns of Anxi, Tang and the West Turks, Kashgar and Tubo