serving as a military patrol, reconnaissance or security vehicle. Examples include the ATF Dingo, AMZ Dzik, AMZ Tur, Mungo ESK, and Bushmaster IMV. This term also applies to the vehicles currently being fielded as part of the MRAP program. IMVs were developed in response to the threats of modern counterinsurgency warfare, with an emphasis on Ambush Protection and Mine-Resistance. Similar vehicles existed long before the term IMV was coined, such as the French VAB and South African Buffel. The term is coming more into use to differentiate light 4x4 wheeled APCs from the traditional 8x8 wheeled APCs. It is a neologism for what might have been classified in the past as an armoured scout car, such as the BRDM, but the IMV is distinguished by having a requirement to carry dismountable infantry. The up-armoured M1114 Humvee variant can be seen as an adaptation of the unarmoured Humvee to serve in the IMV role. Amphibious vehicles Many modern military vehicles, ranging from light wheeled command and reconnaissance, through armoured personnel carriers and tanks, are manufactured with amphibious capabilities. Contemporary wheeled armoured amphibians include the French Véhicule de l'Avant Blindé and Véhicule Blindé Léger. The latter is a small, lightly armoured 4×4 all-terrain vehicle that is fully amphibious and can swim at 5.4 km/h. The VAB (Véhicule de l'Avant Blindé – 'armoured vanguard vehicle') is a fully amphibious armoured personnel carrier powered in the water by two water jets, that entered service in 1976 and produced in numerous configurations, ranging from basic personnel carrier, anti-tank missile platform. During the Cold War the Soviet bloc states developed a number of amphibious APCs, fighting vehicles and tanks, both wheeled and tracked. Most of the vehicles the Soviets designed were amphibious, or could ford deep water. Wheeled examples are the BRDM-1 and BRDM-2 4x4 armoured scout cars, as well as the BTR-60, BTR-70, BTR-80 and BTR-94 8x8 armoured personnel carriers and the BTR-90 infantry fighting vehicle. The United States started developing a long line of Landing Vehicle Tracked (LVT) designs from ca. 1940. The US Marine Corps currently uses the AAV7-A1 Assault Amphibious Vehicle, which was to be succeeded by the Expeditionary Fighting Vehicle, which was capable of planing on water and can achieve water speeds of 37–46 km/h. The EFV project has been cancelled. A significant number of tracked armoured vehicles that are primarily intended for land-use, have some amphibious capability, tactically useful inland,