The Bedfordshire and Hertfordshire Regiment was the final title of a line infantry regiment of the British Army that was originally formed in 1688. After centuries of service in many conflicts and wars, including both the First and Second World Wars, the regiment was amalgamated with the Essex Regiment in 1958 to form the 3rd East Anglian Regiment. However, this was short-lived and again was amalgamated, in 1964, with the 1st East Anglian Regiment and 2nd East Anglian Regiment, and the Royal Leicestershire Regiment to form the present Royal Anglian Regiment.

The Essex Regiment was a line infantry regiment of the British Army in existence from 1881 to 1958. The regiment served in many conflicts such as the Second Boer War and both World War I and World War II, serving with distinction in all three. It was formed in 1881 under the Childers Reforms by the amalgamation of the 44th Regiment of Foot and the 56th Regiment of Foot.