In 1914, the Inns of Court Reserve Corps was formed, consisting of former members of the Inns of Court Rifle Volunteers; and in 1917 the 1st Cadet Battalion, Inns of Court, was formed to train boys under military age. The Inns of Court OTC expanded rapidly in August and September 1914, as thousands volunteered for military service following the outbreak of the First World War, and the corps quickly outgrew its peacetime premises in London.
In 1914, the Inns of Court Reserve Corps was established, made up of former members of the Inns of Court Rifle Volunteers; and in 1917, the 1st Cadet Battalion, Inns of Court, was formed to train boys under military age. The Inns of Court OTC expanded significantly in August and September 1914 as thousands volunteered for military service following World War I's outbreak, and the corps quickly outgrew its peacetime London premises.