探讨了明代的西北边疆形势、边疆政策特点及关西七卫设立的原因、经过。

The second part will study the situation of northwest border, the character of border policy and the reason, proceeding of setting up seven garrisons in the west of Jiayu Pass during Ming dynasty.

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道光咸丰时期，清王朝边疆危机四伏，原来行之有效的边疆政策开始走向破产。

During Daoguang and Xianfeng, Qin dynastys frontier danger was vulnerable to attack on all sides, the effective frontier policy began to fail.

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因此，其边疆民族政策呈现两个特点：民族同化和战时特征。

So the minority policy of Nationalist Government is of two characteristics: the assimilation of minority ethnic groups with the wartime characteristic.

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