The War of the Third Coalition was a European conflict lasting from 1805 to 1806 and was the first conflict of the Napoleonic Wars. During the war, France and its client states under Napoleon I opposed an alliance, the Third Coalition, which was made up of the United Kingdom, the Austrian Empire, the Russian Empire, Naples, Sicily, and Sweden. Prussia remained neutral during the war.
In The Plumb-pudding in danger (1805), James Gillray caricatured overtures made by Napoleon in January 1805 for a reconciliation with Britain.
The strategic situation in Europe in 1805 before the start of the Ulm Campaign and the war
The French concentrated around the Rhine from early to mid-September. 210,000 troops of the Grande Armée prepared to cross into Germany and encircle the Austrians.
The Treaty of Amiens temporarily ended hostilities between France, the Spanish Empire, and the United Kingdom at the end of the War of the Second Coalition. It marked the end of the French Revolutionary Wars; after a short peace it set the stage for the Napoleonic Wars. Britain gave up most of its recent conquests; France was to evacuate Naples and Egypt. Britain retained Ceylon and Trinidad.
The Peace of Amiens by Jules-Claude Ziegler, 1853
Britain's foreign secretary Robert Jenkinson, Lord Hawkesbury, 1796 portrait by Thomas Lawrence
Charles Cornwallis, portraited by John Singleton Copley c. 1795
Joseph Bonaparte, portraited by Luigi Toro