LAV meaning in Military and Defence ?

A military armored (or armoured) car is a lightweight wheeled armored fighting vehicle, historically employed for reconnaissance, internal security, armed escort, and other subordinate battlefield tasks. With the gradual decline of mounted cavalry, armored cars were developed for carrying out duties formerly assigned to light cavalry. Following the invention of the tank, the armored car remained popular due to its faster speed, comparatively simplified maintenance and low production cost. It also found favor with several colonial armies as a cheaper weapon for use in underdeveloped regions. During World War II, most armored cars were engineered for reconnaissance and passive observation, while others were devoted to communications tasks. Some equipped with heavier armament could even substitute for tracked combat vehicles in favorable conditions—such as pursuit or flanking maneuvers during the North African Campaign.

Since World War II the traditional functions of the armored car have been occasionally combined with that of the armored personnel carrier, resulting in such multipurpose designs as the BTR-40 or the Cadillac Gage Commando. Postwar advances in recoil control technology have also made it possible for a few armored cars, including the B1 Centauro, the AMX-10RC and EE-9 Cascavel, to carry a large cannon capable of threatening many tanks.