religion

the German Peasants' War (1524–1525)
the battle of Kappel in Switzerland (1531)
the Schmalkaldic War (1546–1547) in the Holy Roman Empire
the Eighty Years' War (1568–1648) in the Low Countries
the French Wars of Religion (1562–1598)
the Thirty Years War (1618–1648), affecting the Holy Roman Empire including Habsburg Austria and Bohemia, France, Denmark and Sweden
the Wars of the Three Kingdoms (1639–1651), affecting England, Scotland and Ireland
Scottish Reformation and Civil Wars
English Reformation and Civil War
Irish Confederate Wars and the Cromwellian conquest of Ireland
Nine Years' War (1688-97)
(shamlesslytaken of wikepedia)