The French Revolutionary Wars (French: Guerres de la Rvolution franaise) were a series of sweeping military conflicts lasting from 1792 until 1802 and resulting from the French Revolution. They pitted France against Britain, Austria, Prussia, Russia, and several other monarchies. They are divided in two periods: the War of the First Coalition (179297) and the War of the Second Coalition (17981802). Initially confined to Europe, the fighting gradually assumed a global dimension. After a decade of constant warfare and aggressive diplomacy, France had conquered territories in the Italian Peninsula, the Low Countries and the Rhineland in Europe and abandoned Louisiana in North America. French success in these conflicts ensured the spread of revolutionary principles over much of Europe.

As early as 1791, the other monarchies of Europe looked with outrage at the revolution and its upheavals; and they considered whether they should intervene, either in support of King Louis XVI, to prevent the spread of revolution, or to take advantage of the chaos in France. Austria stationed significant troops on its French border and together with Prussia, issued the Declaration of Pillnitz, which threatened severe consequences should anything happen to King Louis XVI and Queen Marie-Antoinette. After Austria refused to recall its troops from the French border and to back down on the perceived threat of using force, France declared war on Austria and Prussia in the spring of 1792; both countries responded with a coordinated invasion that was eventually turned back at the Battle of Valmy in September. This victory emboldened the National Convention to abolish the monarchy. A series of victories by the new French armies abruptly ended with defeat at Neerwinden in the spring of 1793. The French suffered additional defeats in the remainder of the year and these difficult times allowed the Jacobins to rise to power and impose the Reign of Terror to unify the nation.

In 1794, the situation improved dramatically for the French as huge victories at Fleurus against the Austrians and at the Black Mountain against the Spanish signaled the start of a new stage in the wars. By 1795, the French had captured the Austrian Netherlands and the Dutch Republic. The French also put Spain and Prussia out of the war with the Peace of Basel. A hitherto unknown general named Napoleon Bonaparte began his first campaign in Italy in April 1796. In less than a year, French armies under Napoleon decimated the Habsburg forces and evicted them from the Italian peninsula, winning almost every battle and capturing 150,000 prisoners. With French forces marching towards Vienna, the Austrians sued for peace and agreed to the Treaty of Campo Formio, ending the First Coalition against the Republic.

The War of the Second Coalition began in 1798 with the French invasion of Egypt, headed by Napoleon. The Allies took the opportunity presented by the French effort in the Middle East to regain territories lost from the First Coalition. The war began well for the Allies in Europe, where they gradually pushed the French out of Italy and invaded Switzerland racking up victories at Magnano, Cassano and Novi along the way. However, their efforts largely unraveled with the French victory at Zurich in September 1799, which caused Russia to drop out of the war. Meanwhile, Napoleon's forces annihilated a series of Egyptian and Ottoman armies at the battles of the Pyramids, Mount Tabor and Abukir. These victories in Egypt further enhanced Napoleon's popularity back in France, and he returned in triumph in the autumn of 1799, though the Egyptian Campaign ultimately ended in failure. Furthermore, the Royal Navy had won the Battle of the Nile in 1798, further strengthening British control of the Mediterranean and weakening the French Navy.

Napoleon's arrival from Egypt led to the fall of the Directory in the Coup of 18 Brumaire, with Napoleon installing himself as Consul. Napoleon then reorganized the French army and launched a new assault against the Austrians in Italy during the spring of 1800. This brought a decisive French victory at the Battle of Marengo in June 1800, after which the Austrians withdrew from the peninsula once again. Another crushing French triumph at Hohenlinden in Bavaria forced the Austrians to seek peace for a second time, leading to the Treaty of Lunville in 1801. With Austria and Russia out of the war, Britain found itself increasingly isolated and agreed to the Treaty of Amiens with Napoleon's government in 1802, concluding the Revolutionary Wars. However, the lingering tensions proved too difficult to contain, and the Napoleonic Wars began over a year later with the formation of the Third Coalition, continuing the series of Coalition Wars.

Francis II (German: Franz II.; 12 February 1768 – 2 March 1835) was the last Holy Roman Emperor (from 1792 to 1806) and, as Francis I, the first Emperor of Austria, from 1804 to 1835. He assumed the title of Emperor of Austria in response to the coronation of Napoleon as Emperor of the French. Soon after Napoleon created the Confederation of the Rhine, Francis abdicated as Holy Roman Emperor. He was King of Hungary, Croatia and Bohemia. He also served as the first president of the German Confederation following its establishment in 1815.

Francis II continued his leading role as an opponent of Napoleonic France in the Napoleonic Wars, and suffered several more defeats after Austerlitz. The marriage of his daughter Marie Louise of Austria to Napoleon on 10 March 1810 was arguably his severest personal defeat. After the abdication of Napoleon following the War of the Sixth Coalition, Austria participated as a leading member of the Holy Alliance at the Congress of Vienna, which was largely dominated by Francis' chancellor Klemens Wenzel, Prince von Metternich culminating in a new European map and the restoration of most of Francis' ancient dominions. Due to the establishment of the Concert of Europe, which largely resisted popular nationalist and liberal tendencies, Francis was viewed as a reactionary later in his reign.

Francis II's grandchildren include Napoleon II (Napoleon's only legitimate son), Franz Joseph I of Austria, Maximilian I of Mexico, Maria II of Portugal and Pedro II of Brazil.