The Polish–Swedish War (1617–1618) was a phase of the longer Polish–Swedish War of 1600 to 1629

Polish–Swedish War (1600–1629)

The Polish–Swedish War was twice interrupted by periods of truce and thus can be divided into:* Polish–Swedish War * Polish–Swedish War...

. It continued the war of 1600–1611

Polish–Swedish War (1600–1611)

-Origins:This conflict between the Polish–Lithuanian Commonwealth and Sweden can trace its roots to the War against Sigismund, where Sigismund III Vasa, at one time king of both the Commonwealth and Sweden, lost the throne of Sweden during the civil war...

 and was an attempt by Sweden to take Polish pressure off Russia. The Polish–Lithuanian Commonwealth was then also fighting Tartars

Crimean Khanate

Crimean Khanate, or Khanate of Crimea , was a state ruled by Crimean Tatars from 1441 to 1783. Its native name was . Its khans were the patrilineal descendants of Toqa Temür, the thirteenth son of Jochi and grandson of Genghis Khan...

 and (on the southern front) the Ottoman Empire

Ottoman Empire

The Ottoman EmpireIt was usually referred to as the "Ottoman Empire", the "Turkish Empire", the "Ottoman Caliphate" or more commonly "Turkey" by its contemporaries...

. Russia and Sweden were at that stage allied, prior to the Ingrian War

Ingrian War

The Ingrian War between Sweden and Russia, which lasted between 1610 and 1617 and can be seen as part of Russia's Time of Troubles, is mainly remembered for the attempt to put a Swedish duke on the Russian throne...

, part of the Polish-Muscovite War

Polish-Muscovite War (1605–1618)

The Polish–Muscovite War took place in the early 17th century as a sequence of military conflicts and eastward invasions carried out by the Polish–Lithuanian Commonwealth, or the private armies and mercenaries led by the magnates , when the Russian Tsardom was torn into a series of civil wars, the...

s. The 1617–18 war's cause was a dispute over Livonia and Estonia, and a dispute between Sigismund III Vasa

Sigismund III Vasa

Sigismund III Vasa was King of Poland and Grand Duke of Lithuania, a monarch of the united Polish–Lithuanian Commonwealth from 1587 to 1632, and King of Sweden from 1592 until he was deposed in 1599...

 and Charles IX of Sweden

Charles IX of Sweden

Charles IX of Sweden also Carl, was King of Sweden from 1604 until his death. He was the youngest son of King Gustav I of Sweden and his second wife, Margaret Leijonhufvud, brother of Eric XIV and John III of Sweden, and uncle of Sigismund III Vasa king of both Sweden and Poland...

over the Swedish throne.