Until the 1990s, most Army trucks had the engine in front of the cab. In the US this is called "conventional." In Great Britain, this is called "bonneted." In the 1990s, the Army changed to new types. Most new types can have an armored cab. Medium and large trucks have the cab over the engine ("COE"). The front of the cab looks flat. Most trucks in Great Britain and Europe are COE. A new large-size truck has the cab in front of the engine ("forward control"). There are two axles under the engine. Both axles steer.