AVCHD (A dvanced V ideo C oding H igh D efinition) is a file-based format for the digital recording and playback of high-definition video. Developed jointly by Sony and Panasonic, the format was introduced in 2006 primarily for use in high definition consumer camcorders.
infantry (plural infantries) 1  Soldiers who fight on foot (on land), as opposed to cavalry and other mounted units, regardless of external transport (e.g. airborne). ( 2 uncountable) The part of an army consisting of infantry soldiers, especially opposed to mounted and technical troops. 3  A regiment of infantry.
Infantry battalions. Infantry battalions are the heart and soul of the ground combat element. The mission of locating, closing with, and destroying the enemy with fire and maneuver and repelling the enemy's assault with fire and close combat lies with the grunts.