The Bison was an extemporised armoured fighting vehicle frequently characterised as a mobile pillbox. Bisons were produced in Britain during the invasion crisis of 1940-1941. Based on a number of different lorry chassis, it featured a fighting compartment protected by a layer of concrete.
The Bison was not very mobile, and was only intended for use in static defence. However, it was relatively cheap and easy to produce, and could provide valuable protection for troops against enemy fire.
Bisons were used by the Royal Air Force (RAF) to protect aerodromes and by the Home Guard. They acquired the generic name “Bison” from their main manufacturer, Thornycroft.
It’s a good illustration of the desperate state of the defence of the United Kingdom in 1940. Take a lorry and add some concrete to turn it into an armoured vehicle. They were really no more than mobile pillboxes.
You can imagine that in the event of an actual German invasion that regular forces and Home Guard would build similar improvised vehicles to support the defence of the country against the invaders.
From a gaming and modelling perspective, there are some 3D printed models out there. Of course improvisation opens up a range of conversion opportunities as well.























