The Suffolk Regiment was an infantry regiment of the line in the British Army with a history dating back to 1685. It saw service for three centuries, participating in many wars and conflicts, including the First and Second World Wars, before being amalgamated with the Royal Norfolk Regiment to form the 1st East Anglian Regiment (Royal Norfolk and Suffolk) in 1959 which, in 1964, was further amalgamated with the 2nd East Anglian Regiment (Duchess of Gloucester's Own Royal Lincolnshire and Northamptonshire), the 3rd East Anglian Regiment (16th/44th Foot) and the Royal Leicestershire Regiment to create the present Royal Anglian Regiment.

The 1st Battalion, Suffolk Regiment was a Regular Army unit stationed in Devonport as part of the 8th Infantry Brigade, 3rd Infantry Division and served with the British Expeditionary Force (BEF) in France from late 1939 to May 1940. The division was commanded by Major-General Bernard Montgomery. With the rest of the BEF, it was evacuated from Dunkirk in 1940. The next four years were spent training in the United Kingdom for the invasion of Normandy in 1944, otherwise known as D-Day. The 1st Battalion, under the command of Lieutenant Colonel Richard E. Goodwin, was involved in attacking and taking the Hillman Fortress on D-Day itself. They served with the 3rd Infantry Division throughout the entire North West Europe Campaign from D-Day to Victory in Europe Day in 1945. By the end of the war the 1st Battalion had lost 215 men killed in action.