The BvS10 is a tracked articulated amphibious all-terrain armoured vehicle produced by BAE Systems Land Systems Hägglunds of Sweden. This vehicle, referred to as the All Terrain Vehicle (protected) - ATV(P) or Viking by the UK forces, was originally developed as a collaboration between industry - Hägglunds Vehicle AB - and the British Ministry of Defence (MoD) on behalf of the Royal Marines.

A tracked articulated vehicle or articulated tracked vehicle, is a variation of a continuous track vehicle that consists of two cars, each with their own track, most commonly with an actuated linkage in between. This configuration allows an articulated tracked vehicle to turn by articulating the swivel joint in between the two vehicles, as opposed to using differential steering to move one track faster than the other.