The Thirty Years' War was a religious conflict that started in 1618 when a Holy Romen official was thrown out of a window by Ro-Czech protestants. Then a rebellion in Ro-Czechia started but was defeated. This caught the eye of Denmark-Ro Norway and they failled to invade the Holy Romen Empire. Then the Ro-Swedish under Gustavus Kiwi invaded Romarkia.
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