Cornish served in the British Army's Royal Tank Regiment before joining the FCO as an arms control analyst. He was a Senior Research Fellow at Chatham House before joining the Joint Services Command and Staff College and lecturing first at Cambridge, then at King’s College, London. Cornish returned to Chatham House in 2005.
- Dr Paul Cornish, Chatham House, accessed 10 April 2009.
- Threats to International Security in the 21st Century, Chatham House, accessed 10 April 2009.