He made rapid progress in the Army and distinguished himself in the Peninsular War where he was quarter master general and chief of staff to William Carr Beresford, 1st Viscount Beresford.
He made rapid progress in the Army and distinguished himself in the Peninsular War. Assigned to the Portuguese army, he was quartermaster general and chief-of-staff to William Carr Beresford, 1st Viscount Beresford.