On 15 December 1792 the French National Convention voted to annex Belgium. Its economic interests threatened, the United Kingdom dismissed the French ambassador on 24 January 1793. France thereupon declared war on Britain and the Dutch Republic on 1 February. Meanwhile, the armies defending France's eastern borders declined in strength from 400,000 to 225,000 soldiers largely due to desertion. To meet the crisis, the Convention decreed mass conscription.[1] Amid these events, King Louis XVI was executed by guillotine on 21 January 1793.[2] The War in the Vendée was triggered by opposition to conscription, annoyance at the high cost of food and fury at the Convention's anti-Catholic laws.[1]Protestants and the residents of the large towns generally supported the Republican cause.[3]
The Vendean nobility provided leaders for insurgent fighters who fought in wooded terrain criss-crossed by narrow lanes that were bordered by thick hedges.[4] The Vendean rebels knew every inch of the territory.[3] If the Republican French troops or Blues were defeated they were pursued by a swarm of vengeful Vendean peasants. If the Blues won the fight, the Vendeans vanished into the countryside, lulling their opponents into believing that the war was over.[5] Republicans who prided themselves at having overthrown the monarchy were astonished to find that an entire section of the nation, with few nobles living there, in open Royalist rebellion. Exasperated at the Vendeans, the Republicans finally resorted to brutal means, even extermination, to put down the revolt.[3]
On 14 April 1793, La Bourdonnaye was replaced by Jean Baptiste Camille Canclaux. By decree the Army of the Coasts was split into the Army of the Coasts of Brest and the Army of the Coasts of Cherbourg on 30 April.[6] Canclaux assumed command of the Brest army on 1 May 1793. His army was responsible for the seacoast from Saint-Malo to the mouth of the Loire River.[9]
Phipps, Ramsay Weston (2011). The Armies of the First French Republic: Volume III The Armies in the West 1793 to 1797 And, The Armies In The South 1793 to March 1796. Vol. 3. USA: Pickle Partners Publishing. ISBN978-1-908692-26-9.