Global conflict among major powers. Began as Austria–Prussia struggle over Silesia. Alliances: Britain/Prussia/Hanover vs. France/Austria/Russia/Sweden/Saxony/German states. Key battles: Rossbach (1757), Leuthen (1757). Ended with Treaty of Hubertusburg (1763)—status quo ante for Silesia.
Extension of the global war. Britain vs. France over Ohio Valley and Canada. British victory with colonial aid.