They patrolled the British coast from Cornwall[3] up to the Moray Firth in Scotland.

[5] The armoured trains were formed in July 1940 as part of the preparations to face a German invasion; these were initially armed with QF 6 pounder 6 cwt Hotchkiss guns and six Bren Guns, by Royal Engineer crews and manned by Royal Armoured Corps troops.

The Polish Armoured Train battalions were founded on 12 October 1940.

[6] In late 1940 preparations began to hand the trains over to the Polish Army and expand the rolling stock used.

[7] They were quite soon phased out in England, but three continued to be used in Scotland,[8] until the last one was withdrawn in November 1944.