Kangxi strengthened the borders of the empire through agreements with the [[Macao|Portuguese]], a [[Treaty of Nerchinsk|treaty]] with the Russians, and military campaigns against the [[Zunghars]], and established in [[1668]] a "willow palisade" blocking off Han Chinese access to large portions of the [[Manchuria|Manchu homelands]]. He also improved official communication networks (including those for covert state information). Kangxi's reign also saw considerable agricultural and commercial expansion, but the Court failed to revise its tax codes appropriately to best capture state revenues from these developments.<ref>Spence, 4-5.</ref> | Kangxi strengthened the borders of the empire through agreements with the [[Macao|Portuguese]], a [[Treaty of Nerchinsk|treaty]] with the Russians, and military campaigns against the [[Zunghars]], and established in [[1668]] a "willow palisade" blocking off Han Chinese access to large portions of the [[Manchuria|Manchu homelands]]. He also improved official communication networks (including those for covert state information). Kangxi's reign also saw considerable agricultural and commercial expansion, but the Court failed to revise its tax codes appropriately to best capture state revenues from these developments.<ref>Spence, 4-5.</ref> |