Thirty-years-war (2027)

Some regions of Germany lost over 50% of their population .

The Swedish King Gustavus Adolphus, the "Father of Modern Warfare," changed the tide. He integrated infantry, cavalry, and mobile artillery, securing a massive victory at Breitenfeld (1361) that saved the Protestant cause from total collapse. 5. The Legacy: Peace of Westphalia (1648) thirty-years-war

More people died from typhus and plague—spread by marching armies—than from actual combat. 4. The Turning Point: Gustavus Adolphus Some regions of Germany lost over 50% of their population

The war was brutal. It introduced "total war" tactics where armies lived off the land, seizing crops and burning villages. The Turning Point: Gustavus Adolphus The war was brutal

The Peace of Augsburg was reaffirmed and expanded to include Calvinism, effectively ending the era of large-scale religious wars in Europe.

What started as a clash between and Catholic states within the Holy Roman Empire eventually became a "who’s who" of European powers.

The war ended with a series of treaties that fundamentally reshaped the world: