The French Revolutionary Wars continued from 1792, with new powers entering the First Coalition after the execution of King Louis XVI. Spain and Portugal entered the coalition in January 1793, and on 1 February France declared war on Great Britain and the Netherlands. In September, Houchard defeated the Duke of York at Hondschoote, forcing him to abandon the siege of Dunkirk. In October Jean-Baptiste Jourdan, taking over the northern armies, won the Battle of Wattignies and returned to the offensive, but did not make major gains before the winter.