not amused. Aftermath After the battle Russian and British reinforcements arrived in Den Helder and the Anglo-Russian forces soon amounted to 40,000 men. The Duke of York, having assumed supreme command of the Anglo-Russian expeditionary force, decided to exploit this numerical superiority. He made an attempt to break out of his bridgehead in the Zijpe polder on 19 September. This resulted in the Battle of Bergen (1799) which, though ending in a tactical draw, failed to attain the British objectives. Only the following October did he manage to force a Franco-Batavian retreat in the Battle of Alkmaar (1799). A few days later, at the Battle of Castricum the Franco-Batavian forces prevailed again and York had to withdraw to the Zijpe polder. His dire position then forced him to sue for an honorable capitulation in the form of the Convention of Alkmaar. Notes Sources The campaign in Holland, 1799, by a subaltern (1861) W. Mitchell (1822) Histoire Critique Et Militaire Des Guerres de la Revolution: Nouvelle Edition, Redigee Sur de Nouveaux Documens, Et Augmentee D'un Grand Nombre de Cartes Et de Plans (tome xv, ch. xciii) (1832) Geschiedkundige Beschouwing van den Oorlog op het grondgebied der Bataafsche Republiek in 1799. J.C. Vieweg Schama, S. (1977), Patriots and Liberators. Revolution in the Netherlands 1780-1813, New York, Vintage books, 1799 in the Batavian Republic Battles involving the Batavian Republic Battles involving France Battles involving Great Britain Battles involving Russia Battles of the French Revolutionary Wars Battles of the Napoleonic Wars Conflicts in 1799 Krabbendam Battle of Krabbendam Patriottentijd