La Romana's Spanish corps cooperated with Sir John Moore's British army in its advance into northern Spain and in its subsequent retreat to the northwest. At Mansilla de las Mulas on the Esla River, the Spanish commander posted Martinengo's division to hold off Soult's pursuing French corps. The rear guard commander unwisely drew up his soldiers with the bridge at their backs. Franceschi's cavalry charged and cut the Spanish formation to pieces. Half of the rear guard were trapped against the river and forced to surrender, others were cut down by Imperial French sabers. La Romana abandoned León the following day. The next major action in the area was the Battle of Corunna on 16 January 1809.