Returning to England in 1784, he was promoted Captain 1785, then next saw active service in 1793 in the Campaign in the Low Countries, where he was aide-de-camp to the Duke of York. Sent to discuss surrender terms with the garrison of Valenciennes, he was present at the Siege of Dunkirk 25 Aug-10 September, and the relief of Menin on the 15th. Detached to the Austrian staff of Coburg, he was present at the Battle of Wattignies 15/16 Oct. Promoted Lieutenant Colonel, he remained on York's staff 1794 and saw action at Beaumont (Troisvilles) 26 April. At the Battle of Tourcoing 17/18 May, he narrowly escaped capture with York and was forced to swim the Espierre's brook with him. He again saw action at Tournai (Pont-à-Chin) 22nd, the retreat to Antwerp, June–July, and in the Defence of Holland. In 1795 he was engaged on a confidential mission to Brunswick and Berlin.