The Army of the West was one of the French Revolutionary Armies that was sent to fight in the War in the Vendée in western France. The army was created on 2 October 1793 by merging the Army of the Coasts of La Rochelle, the so-called Army of Mayence and part of the Army of the Coasts of Brest. In 1793 the army or its component forces fought at Second Châtillon, First Noirmoutier, La Tremblaye, Cholet, Laval, Entrames, Fougères, Granville, Dol, Angers, Le Mans and Savenay. After the main Vendean army was crushed, the revolt evolved into guerilla warfare and there were few pitched battles. In 1794 Louis Marie Turreau tried to suppress the rebellion with extremely brutal methods using the infamous infernal columns. Calmer heads finally prevailed and Turreau was recalled. On 6 January 1796, the army was absorbed into the newly formed Army of the Coasts of the Ocean. The Army of the West came into existence a second time on 17 January 1800 and was finally suppressed on 21 May 1802.

The French Revolutionary Army was the French land force that fought the French Revolutionary Wars from 1792 to 1802. In the beginning, the French armies were characterised by their revolutionary fervour, their poor equipment and their great numbers. However, the French Revolutionary Army had become arguably the most powerful army in the world by the mid-1790s, as the French armies had become well-experienced and organized, enabling them to comfortably outfight their enemies.