Inge was promoted to lieutenant general and became General Officer Commanding I (British) Corps on 8 August 1987. He was appointed a Knight Commander of the Order of the Bath in the 1988 New Year Honours. He relinquished the corps command on 2 October 1989 and, on 27 November, he became the commander of NATO's Northern Army Group and Commander-in-Chief of British Army of the Rhine in Germany with the local rank of general; his rank was made substantive on 3 January 1990.