试析西汉时期发生在西域的三次矫制

西汉时期，在西域发生了三次著名的矫制事件。本始三年，常惠擅自征兵攻龟兹，宣帝为抑制霍光势力，未赏罚常惠。元康元年，冯奉世矫制发兵平定莎车。因儒生势力的牵制，冯奉世未封侯。建昭三年，陈汤矫制发兵诛杀郅支单于。此时保守势力占统治，使陈汤最终被免为庶人。他们三人建奇功于异域，却受到截然不同的待遇。对这三次矫制事件的分析比较，可以帮助我们更加清晰、更加准确地把握西汉的西域政策。

On Three Event of Policy Redressing in the Western Regions of Western Han Dynasty

In Western Han Dynasty, three well-known uprisings erupted in the western regions. In the third year of Benshi, Chang Hui, without gaining permission from the emperor, launched an attack to Qiuei area. The Emperor Xuan didn＇t praise or penalize him. In the first year of Yuankang, Feng Fengshi commanded his military force to subdue the Shache area. Feng Fengshi was not awarded the title of vassal because of the scholarly resistanee. In the third year of Jianzao, Chen Tang killed the Chanyu （ a lord of a small tribe） in Zhizhi area. Because of the predominance of conservatives in the central government, Chan tang was degraded as a plain civilian in the end. These three figures made great achievements in the western regions, but received totally different rewards. By analyzing and comparing, we will present a more clear view about the policies in west regions of Western Han Dynasty.