The disaster of Baylen did not come alone. Napoleon's attack upon Portugal had brought him within the striking-range of Great Britain. On the 1st of August an English army, commanded by Sir Arthur Wellesley, landed on the Portuguese coast at the mouth of the Mondego. Junot, the first invader of the Peninsula, was still at Lisbon; his forces in occupation of Portugal numbered nearly 30,000 men, but they were widely dispersed, and he was unable to bring more than 13,000 men into the field against the 16,000 with whom Wellesley moved upon Lisbon. Junot advanced to meet the invader. A battle was fought at Vimieiro, thirty miles north of Lisbon, on the 21st of August. The victory was gained by the British; and had the first advantage been followed up, Junot's army would scarcely have escaped capture. But the command had passed out of Wellesley's hands. His superior officer, Sir Harry Burrard, took up the direction of the army immediately the battle ended, and Wellesley had to acquiesce in a suspension of operations at a moment when the enemy seemed to be within his grasp. Junot made the best use of his reprieve. He entered into negotiations for the evacuation of Portugal, and obtained the most favourable terms in the Convention of Cintra, signed on the 30th of August. The French army was permitted to return to France with its arms and baggage. Wellesley, who had strongly condemned the inaction of his superior officers after the battle of the 21st, agreed with them that, after the enemy had once been permitted to escape, the evacuation of Portugal was the best result which the English could obtain. [149] Junot's troops were accordingly conveyed to French ports at the expense of the British Government, to the great displeasure of the public, who expected to see the marshal and his army brought prisoners into Portsmouth. The English were as ill-humoured with their victory as the French with their defeat. When on the point of sending Junot to a court-martial for his capitulation, Napoleon learnt that the British Government had ordered its own generals to be brought to trial for permitting the enemy to escape them. [Effect of Spanish rising on Europe.] [War-party in Austria and Prussia.] [Napoleon and Prussia.]