Munden was taken prisoner at the Battle of Brihuega in December 1710,and remained in Spain until the peace negotiations. Although promoted to brigadier-general in 1712, his regiment was disbanded and he was placed on half-pay in that year. In 1715 he raised a regiment of horse and became colonel of the 13th Light Dragoons. He fought at the Battle of Preston against the Jacobite rebels. In 1716, he received arrears for his service in the Iberian Peninsula and was placed on the general staff of the Irish establishment. He served from 1722 as Colonel of the 8th Dragoons from 1722 and took part in the funeral procession of the Duke of Marlborough in August 1722.