Battle of Jemappes
6th November 1792

Declaration of War

by Dave Hollins, UK

Revolutionary France Seizes Belgium

Although still a monarchy, France had formally declared war on Austria on 20th April 1792 and within a few days, the first attempts to invade the Austrian Netherlands (now Belgium and Luxembourg) had begun. A series of small defeats quickly put an end to this plan and prompted the National Assembly to call for a new levy of troops, the Volunteers of 1792, before a second attempt failed in June.

The Franco-Belgian border -– scene of the opening and closing campaigns of the 23 years of war. As in 1815, the battles were fought to secure control of the main roads to Brussels.

Having halted the Prussian advance from the east at Valmy on 20th September, the French decided to make a third attempt on the Netherlands in overwhelming force, confident that the local people would again rebel against the Austrians as they had done unsuccessfully during 1788-91. Being still officially the Royal Army, the French regiments had nevertheless been numbered and abandoned their old titles (demi-brigades were created on 21 February 1793 with the first amalgame).

Long an advocate of an invasion, General Charles Francois Dumouriez was appointed commander of the Armee du Nord and after supporting Kellermann at Valmy, he set off to put his plan into action with about 90,000 men. Duke Albert of Saxe-Teschen, Governor of the Austrian Netherlands and commander of the forces there, was forced to abandon his position at Lille and withdraw on Mons.

His 40,000 troops were spread out in a cordon along the 100 miles (160km), but he was able to gather 13,800 men to face the new French thrust. The French troops were now better trained and with the confidence of being on the offensive, marched from Valenciennes towards Mons on 3rd November, while troops based around Lille and Mauberge mounted diversions. There was an initial skirmish at Bossu that same day, but the Austrians lacked the forces to establish a defensive position on the Frameries hills. Duke Albert had sent three battalions and some squadrons there on 4th November, but had pulled them back to join the withdrawing main army that evening.

The way in which Dumouriez had directed the attack on the Austrian troops seems to have surprised the Austrian headquarters – Chief of Staff Oberst Lindenau wrote “His way of advancing on us was completely new and almost the same as a siege”.


Battle of Jemappes 6th November 1792


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