The French Revolutionary Wars re-esclated as 1793 began. New powers entered the First Coalition days after the execution of King Louis XVI on 21 January. Spain and Portugal were among these. Then, on 1 February France declared war on Great Britain and the Netherlands. Three other powers made inroads into overwhelmingly French-speaking territory in the following months prompting France to amass, domestically, an army of 1,200,000 soldiers. The very ascendant Jacobins executed thousands of proven and suspected dissenters, in the final, climactic phase of the Reign of Terror. Counter-revolutionary forces turned Toulon over to Britain and Spain on 29 August, capturing much of the French navy, a port not retaken by Dugommier (with the assistance of the young Napoleon Bonaparte) until 19 December. Between these months a battle on the northern frontier, in September, was won by France, which saw the mainly British siege of Dunkirk lifted. The Year ended with France's government, the National Convention, who laid the foundations for the First French Republic, launched the next Year, having rebuffed attacks from the south and south-east but having made an unsuccessful counter into Piedmont (toward Turin).