Royal Military Police They then receive further training at the Defence School of Policing and Guarding (DSPG), previously known as Defence College of Policing and Guarding (DCPG). RMP commissioned officers are trained at the Royal Military Academy Sandhurst, as are all other British Army officers. The regimental march of the RMP is "The Watchtower" or ""Hoch Heidecksburg"", originally a German Army marching tune from 1912 by Rudolf Herzer. The RMP motto is "Exemplo Ducemus", Latin for "By example, shall we lead". The Provost Marshal is a post which goes back to the 13th century and was originally an under-officer of the Earl Marshal.
In Which We Serve leads to a flashback in which Blake remembers how he met his wife-to-be, Freda, on a train while on leave. It is also revealed that she is related to the "Torrin"'s affable Chief Petty Officer Hardy (Miles). When both men return to sea, Freda moves in with CPO Hardy's wife and mother-in-law. The "Torrin" participates in the Dunkirk evacuation of the British Expeditionary Force, (portrayed in the film by the 5th Battalion of the Coldstream Guards). Meanwhile, the nightly Blitz takes its toll on British towns. Blake soon gets a letter from home to say that Freda has given birth