It established the "Westphalian System," the idea that a nation has exclusive rights over its own territory and domestic affairs (including religion).
What started as a clash between and Catholic states within the Holy Roman Empire eventually became a "who’s who" of European powers. thirty-years-war
France emerged as the dominant power on the continent, while the Holy Roman Empire began a long, slow decline into a loose collection of independent states. It established the "Westphalian System," the idea that
The war ended with a series of treaties that fundamentally reshaped the world: The war ended with a series of treaties
The war began in Bohemia (modern-day Czech Republic) when Protestant nobles, angry over the curtailing of their religious rights, tossed two Catholic royal officials out of a window in Prague Castle. Remarkably, they survived the 70-foot drop, but the act triggered a rebellion against the Holy Roman Empire. 2. From Religion to Politics
Spain and the Holy Roman Empire fought to maintain Catholic dominance and imperial unity.
Some regions of Germany lost over 50% of their population .