Swedish Troops Land in Pomerania

Date: July 6, 1630 • Location: Somonino, Poland

This milestone marked the outbreak and beginning of this historic period, which spanned 1630.

Thirty Years' War: Four thousand Swedish troops under Gustavus Adolphus land in Pomerania, Germany.

The Thirty Years' War, fought primarily in Central Europe between 1618 and 1648, was one of the most destructive conflicts in European history. An estimated 4.5 to 8 million soldiers and civilians died from the effects of battle, famine, or disease, with parts of Germany reporting population declines of more than 50%. Related conflicts include the Eighty Years' War, the War of the Mantuan Succession, the Franco–Spanish War, the Torstenson War, and Portuguese Restoration War.