War in the Vendée was not until the social unrest and the fear of The Terror (a period between 1793–94 where tens of thousands of people were beheaded by use of guillotine) combined with the external pressures from the Civil Constitution of the Clergy (1790) and the introduction of a levy of 300,000 on the whole of France, decreed by the National Convention in February 1793, that the region erupted. The Civil Constitution of the Clergy required all clerics to swear allegiance to it and, by extension, to the increasingly anti-clerical National Constituent Assembly. All but seven of the 160 bishops refused the oath,
Battle of Neerwinden (1793) "Army of Holland" had 23,244 troops and there were 15,000 men in Belgian garrisons. All told, the strength of the French army in the Low Countries was 122,293 men. The French army became overconfident, believing itself invincible. Meanwhile, the National Convention was riven by bitter political struggles between the moderate Girondists and the extreme Jacobins. During this period the army supply system fell apart through neglect. Dumouriez crossed the Dutch frontier on 16 February 1793. The fortress of Breda fell after a quick siege from 21 to 24 February 1793. The 3,000 Dutch defenders, which included 2,500 infantry and a