The South Eastern and Chatham Railway Companies Joint Management Committee (SE&CRCJMC), known as the South Eastern and Chatham Railway (SE&CR) was a working union of two neighbouring rival railways, the South Eastern Railway (SER) and London, Chatham and Dover Railway (LC&DR), which operated between London and south-east England. Between 1899 and 1923 the SE&CR had a monopoly of railway service in Kent, and to the main Channel ports for ferries to France and Belgium.