During 1811 Victor's force was continually diminished by requests for reinforcement from Soult to aid his siege of Badajoz. This reduction in men, which brought the French numbers down to between 20,000–15,000, encouraged the defenders of Cádiz to attempt a breakout. A sortie of 4,000 Spanish troops, under the command of General José de Zayas, was arranged in conjunction with the arrival of an Anglo-Spanish relief army of around 16,000 troops that landed south in Tarifa. This Anglo-Spanish force was under the overall command of Spanish General Manuel la Peña, with the British contingent being led by Lieutenant-General Sir Thomas Graham. On 21 February 1811 the force set sail for Tarifa, and eventually landed at Algeciras on 23 February. Eventually marching towards Cádiz on 28 February, the force met a detachment of two French divisions under Victor at Barrosa. The battle was a tactical victory for the Coalition force, with a French regimental eagle captured, but it was strategically indecisive.