Editing Carrier battle group (section)

===United States===
====Carrier strike group====
{{Main|Carrier strike group}}
[[Image:George Washington Carrier Strike Group.jpg|thumb|USS ''George Washington'' [[Carrier Strike Group]] sails in formation for a strike group photo in the [[Caribbean Sea]] 29 April 2006.  Such a formation, referred to derisively as the "bullseye" formation, would not be used in combat.]]
In [[modern United States Navy carrier air operations]], a [[carrier strike group]] (CSG) normally consists of 1 aircraft carrier, 1 [[guided missile cruiser]] (for air defense), 2 [[light airborne multi-purpose system|LAMPS]]-[[helicopter carrier|capable]] warships (focusing on anti-submarine and surface warfare), and 1–2 anti-submarine [[destroyer]]s or [[frigate]]s.<ref>{{cite web|author=USS George Washington Public Affairs|date=21 August 2008|title=USS George Washington Departs for Japan|url=http://www.navy.mil/search/display.asp?story_id=39259|access-date=2 November 2012|publisher=Navy.mil|archive-date=8 January 2012|archive-url=https://web.archive.org/web/20120108080059/http://www.navy.mil/search/display.asp?story_id=39259|url-status=dead}}</ref> The large number of CSGs used by the United States reflects, in part, a division of roles and missions allotted during the Cold War, in which the United States assumed primary responsibility for [[blue-water navy|blue-water]] operations and for safeguarding supply lines between the United States and Europe, while the [[NATO]] allies assumed responsibility for less costly [[brown-water navy|brown]]- and [[green-water navy|green-water]] operations. The CSG has replaced the old term of carrier battle group (CVBG or CARBATGRU).{{when|date=March 2019}}  The US Navy maintains 11 carrier strike groups,{{clarify timeframe|date=March 2016}} 10 of which are based in the United States and [[Carrier Strike Group 5|one]] that is forward deployed in [[United States Fleet Activities Yokosuka|Yokosuka]], Japan.

====Expeditionary strike group====
An [[expeditionary strike group]] is composed of an [[amphibious assault ship]] ([[landing helicopter assault|LHA]]/[[landing helicopter dock|LHD]]), a [[dock landing ship]] (LSD), an [[amphibious transport dock]] (LPD), a [[Marine expeditionary unit]], [[McDonnell Douglas AV-8B Harrier II|AV-8B Harrier II]] or, more recently [[Lockheed Martin F-35B Lightning II]] aircraft, [[Sikorsky CH-53E Super Stallion|CH-53E Super Stallion]] and [[Boeing Vertol CH-46 Sea Knight|CH-46E Sea Knight]] helicopters or, more recently, [[Bell Boeing V-22 Osprey|MV-22B]] tiltrotors.  Cruisers, destroyers and attack submarines are deployed with either an Expeditionary Strike Group or a Carrier Strike Group.

====Battleship battle group====
During the period when the American navy recommissioned all four of its {{sclass|Iowa|battleship}}s, it sometimes used a similar formation centered on a [[battleship]], referred to as a battleship battle group.  It was alternately referred to as a surface action group.

The battleship battle group typically consisted of one modernized [[battleship]], one {{sclass|Ticonderoga|cruiser}}, one {{sclass|Kidd|destroyer}} or {{sclass|Arleigh Burke|destroyer|2}}, one {{sclass|Spruance|destroyer|2}}, three {{sclass|Oliver Hazard Perry|frigate}}s and one [[auxiliary ship]] such as a [[replenishment oiler]].<ref>Lightbody and Poyer, pp. 338–339.</ref>

====Surface action group====
A surface action group is "a temporary or standing organization of combatant ships, other than carriers, tailored for a specific tactical mission".<ref>''Dictionary of Military and Associated Terms''. S.v. "[https://www.thefreedictionary.com/surface+action+group surface action group]". Retrieved 12 November 2018.</ref>