The De la Gardie Campaign refers to the actions of a 15,000-strong Swedish military unit, commanded by Jacob De la Gardie and Evert Horn in alliance with the Russian commander Mikhail Skopin-Shuisky against the Polish-Lithuanian Commonwealth in the Polish–Muscovite War (1605–1618). The campaign was a result of an alliance between Charles IX of Sweden and Vasili IV of Russia, made in Viborg in 1609, whereby the latter promised to cede the County of Kexholm to Sweden.