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Third Coalition

European history

Quick Summary

The Third Coalition was a military alliance formed in 1805 against Napoleon's French Empire. It comprised Great Britain, Russia, Austria, and Sweden, with the goal of compelling France to withdraw from occupied territories and restore independence to various European states.1

Napoleon's actions, such as proclaiming the French empire and crowning himself king of Italy, affronted Austria and encouraged the formation of the coalition. While Napoleon initially planned an invasion of Britain, naval defeats, notably at the Battle of Trafalgar, ended these ambitions.123

Napoleon then shifted his focus to the continental coalition. He achieved significant victories, including the encirclement and destruction of an Austrian army at the Battle of Ulm and a decisive triumph over Austrian and Russian forces at the Battle of Austerlitz. These victories led to the dissolution of the Holy Roman Empire and shattered Austrian influence in Germany.2

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