Mechanized infantry is infantry equipped with armored personnel carriers (APCs) or infantry fighting vehicles (IFVs) for transport and combat (see also mechanized force). Mechanized infantry is distinguished from motorized infantry in that its vehicles provide a degree of protection from hostile fire, as opposed to "soft-skinned" wheeled vehicles (trucks or jeeps) for motorized infantry. Most APCs and IFVs are fully tracked or are all-wheel drive vehicles (6×6 or 8×8), for mobility across rough ground. Some nations distinguish between mechanized and armored infantry, designating troops carried by APCs as mechanized and those in IFVs as armored. The support weapons for mechanized infantry are also provided with motorized transport, or they are built directly into combat vehicles to keep pace with the mechanized infantry in combat. For units equipped with most types of APC or any type of IFV, fire support weapons, such as machine guns, autocannons, small-bore direct-fire howitzers, and even anti-tank guided missiles are often mounted directly on the infantry's own transport vehicles. Compared with "light" truck-mobile infantry, mechanized infantry can maintain rapid tactical movement and, if mounted in IFVs, has more integral firepower. It requires more combat supplies (ammunition and especially fuel) and ordnance supplies (spare vehicle components), and a comparatively larger proportion of manpower is required to crew and maintain the vehicles. For example, most APCs mount a section of seven or eight infantrymen but have a crew of two. Most IFVs carry only six or seven infantry but require a crew of three. To be effective in the field, mechanized units also require many mechanics, with specialized maintenance and recovery vehicles and equipment.
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All LRRPs were Rangered on 1 February 1969, and these two units (companies C and D) respectively became Bravo and Alpha Company, 75th Infantry (Ranger). They were the only Ranger units to remain on active duty at the end of the Vietnam War and they continued in service until November 1974 when they were disbanded with most of their personnel forming the core of the new 1st and 2nd Ranger Battalions
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Public Affairs is a term for the formal offices of the branches of the United States Department of Defense whose purpose is to deal with the media and community issues. The term is also used for numerous media relations offices that are created by the U.S. military for more specific limited purposes. Public affairs offices are staffed by a combination of officers, enlisted personnel, civilian officials and contract professionals. Public Affairs offices play a key role in contingency and deployed operations. The typical Public Affairs office is led by an officer who is in charge of planning, budgeting for, executing and evaluating the effectiveness of public affairs programs, and provides public affairs advice, counsel and support for commanders and senior staff members.
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