Peter Duffell (British Army officer)

Peter Duffell (1922 – 1997) was a British Army officer who served with distinction throughout a significant period of the 20th century, particularly during the Malayan Emergency and the Troubles in Northern Ireland.

Duffell was commissioned into the Royal Ulster Rifles in 1942. His early career saw service in the latter stages of World War II. However, he gained considerable experience and recognition during the Malayan Emergency (1948-1960). His actions and leadership in jungle warfare were noted for their effectiveness.

He is best known for his role as commander of 1st Battalion, The Royal Green Jackets during the early stages of the Troubles in Northern Ireland in 1971. His battalion was deployed to Belfast, and Duffell implemented a robust and controversial strategy to restore order and combat paramilitary activity. His approach, known as "Operation Demetrius" (internment without trial), while initially aimed at curtailing violence, ultimately proved divisive and counterproductive, contributing to an escalation of the conflict. The operation led to a surge in support for republican paramilitary groups and a deepening of community tensions.

After his command in Northern Ireland, Duffell continued to serve in the British Army, holding various staff appointments before retiring. He remained a figure of considerable debate due to his role in the implementation of internment, a policy that continues to be a source of controversy and historical analysis regarding its impact on the Northern Ireland conflict.