Thirty Years' War (may 23, 1618 – oct 15, 1648)
Description:
Initially a war between various Protestant and Catholic states in the fragmented Holy Roman Empire, it gradually developed into a more general conflict involving most of the great powers. These states employed relatively large mercenary armies, and the war became less about religion and more of a continuation of the France–Habsburg rivalry for European political pre-eminence.Added to timeline:
Date:
may 23, 1618
oct 15, 1648
~ 30 years