Changes

Xi Xia invaded Song territory in [[Shanxi province]] in the year of its founding, in [[1038]], beginning a war with the Song which was to last until [[1044]]. During this time, the Song developed improved crossbows, gunpowder weapons, catapults, shields, and other projectile weapons. Eventually, the two sides achieved an agreement, by which the Song paid [[tribute]] to the Tanguts in exchange for peace, as the Song simultaneously did with the Khitans.

Xi Xia invaded Song territory in [[Shanxi province]] in the year of its founding, in [[1038]], beginning a war with the Song which was to last until [[1044]]. During this time, the Song developed improved crossbows, gunpowder weapons, catapults, shields, and other projectile weapons. Eventually, the two sides achieved an agreement, by which the Song paid [[tribute]] to the Tanguts in exchange for peace, as the Song simultaneously did with the Khitans.

War with the Song broke out again in [[1080]]-[[1081]], and the Xi Xia continued to pose a threat to the Song until its fall to [[Mongol]] forces in [[1211]].

War with the Song broke out again in [[1080]]-[[1081]], and the Xi Xia continued to pose a threat to the Song until its fall to [[Mongol]] forces in [[1227]].

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