 Complete the following phrase:  He engineered a coup in November 1799 and became First Consul of the Republic. Intractable differences with the British meant that the French were facing the War of the Third Coalition by 1805. Napoleon shattered this coalition with decisive victories in the Ulm Campaign, and a historic triumph at the Battle of Austerlitz, which led to the dissolving of the Holy Roman Empire. In 1806, the Fourth Coalition took up arms against him because Prussia became worried about growing French influence on the continent. Napoleon quickly knocked out Prussia at the battles of Jena and Auerstedt, then marched the Grande Armée deep into Eastern Europe, annihilating the Russians in June 1807 at 