尤其安史之乱, 西域 和 河陇边兵大量内调平叛,给了吐蕃占据河西切断西域,不断坐大的机会,导致最终失去了西域。
本帖于 2020-08-09 16:54:52 时间, 由普通用户 yongshi99 编辑
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