What is Thirty Years' War?
{{Infobox Military Conflict | conflict = Thirty Years' War | image = Europe map 1648.PNG | caption = Map of Europe in 1648. The grey places are small German states within the [[Holy Roman Empire]]. | date = May 1618–1648 | place = [[Europe]] (mostly [[Germany]]) | result = [[Peace of Westphalia]] | casus = | territory = | combatant1 = [[File:Flag of Sweden.svg|border|22px]] [[Swedish Empire|Sweden]]<br />[[File:Flag of Bohemia.svg|22px]] [[Bohemia]]<br />[[File:Flag of Denmark.svg|border|20px]] [[Denmark-Norway]]<br />[[File:Prinsenvlag.svg|22px]] [[Dutch Republic]]<br />[[File:Flag of Royalist France.svg|border|22px]] [[Early Modern France|France]]<br />[[File:Flag of Scotland.svg|border|22px]] [[Kingdom of Scotland|Scotland]]<br />[[File:Flag of England (bordered).svg|22px]] [[Kingdom of England|England]]<br />[[File:Flag of Saxony.svg|border|22px]] [[Electorate of Saxony|Saxony]] | combatant2 = [[File:Flag of New Spain.svg|22px]] [[Habsburg Spain|Spain]]<br /> [[File: Flag of Portugal (1578).svg|border|22px]] [[Habsburg Portugal Iberian Union|Portugal]]<br /> [[File:Flag Germany Emperors Banner.svg|22px]] [[Holy Roman Empire]]<br />([[Catholic League (German)|Catholic League]])<br />[[File:Flag of the Habsburg Monarchy.svg|22px]] [[Habsburg Monarchy|Austria]] <br />[[File:Flag of Bavaria (striped).svg|22px]] [[Electorate of Bavaria|Bavaria]] | commander1 = {{Flagicon|Bohemia}} [[Frederick V, Elector Palatine|Frederick V]]<br /> {{Flagicon|Sweden}} [[Gustav II Adolf]]{{KIA}}<br /> {{Flagicon|Sweden}} [[Johan Baner]]<br />[[File:Flag of Royalist France.svg|22px]] [[Cardinal Richelieu]]<br />[[File:Flag of Royalist France.svg|22px]] [[Louis II de Bourbon, Prince de Condé|Louis II de Bourbon]]<br />[[File:Flag of Royalist France.svg|22px]] [[Henri de la Tour d'Auvergne, Vicomte de Turenne|Turenne]]<br />{{Flagicon|Denmark}} [[Christian IV of Denmark]]<br />[[File:Flag of Saxony.svg|22px]] [[Bernhard of Saxe-Weimar]]<br />[[File:Flag of Saxony.svg|22px]] [[John George I o