One of the core principles of the Livery movement is the support of the armed forces, and the Guild is proud to follow in the same tradition through its close links to the various London regiments. The City of London prides itself on its close relationship with all branches of the service, and is equally proud to be to home to some of the oldest military organisations in the world.

Members of the Guild work together closely with members of the armed forces (full time, reserve, and cadets) at many key events throughout the year, and many members of the Guild are themselves serving in the reserves.