Duenuge Edward Henry Pedris was a Ceylonese militia officer and a prominent socialite. Pedris was executed for treason by the 17th Punjab Regiment of the British Indian Army under martial law during the 1915 Sinhalese-Muslim riots. Convicted in a three day Field General Court Martial under the terms of the Army Act, by passing the local legal system, his execution was viewed as unjust by the local population and a warning to local leaders. It hastened the movement toward independence, providing motivation and a martyr for those who pioneered the movement.

The Ceylon Defence Force (CDF) was established in 1910 by the Ceylonese legislation Ceylon Defence Force Ordinance, which reformed the Ceylon Volunteer Force (CVF) that existed previously as the military reserve in the British Crown colony of Ceylon. At the time of forming it was only a reserve force but soon developed into a regular force responsible for the defence of Ceylon. The CDF was under the command of the General Officer Commanding, Ceylon of the British Army in Ceylon if mobilised. However mobilisation could be carried out only under orders from the Governor.