From 1860 he became involved with the volunteers working with the army and became the inspector-general of volunteers. In 1865 he established the Engineer and Volunteers Staff Corps. He also became the colonel of the Inns of Court Volunteers and of the Engineer and Volunteers Staff Corps.
From 1860, he began working with volunteer forces alongside the army and was appointed inspector-general of volunteers. In 1865, he established the Engineer and Volunteers Staff Corps. He also became colonel of both the Inns of Court Volunteers and the Engineer and Volunteers Staff Corps.