? Usually, an American aircraft carrier battle group consists of 1 aircraft carrier, 2 guided missile cruisers, 2 guided missile destroyers, 1 destroyer, 1 frigate, 1 2 attack nuclear submarine and 1 2 supply ship. The combat fleet headed by aircraft carrier is an important part of American power projection capability. The formation of the aircraft carrier battle group enables the United States to attack almost anywhere in the world quickly.

At present, the attack and defense capability of an aircraft carrier battle group in the United States is very complicated. ? Generally speaking, it depends on the fighters carried by the aircraft carrier. 、? Attack aircraft? 、? Early warning aircraft? Anti-submarine aircraft or helicopters attack, defend or search enemies hundreds of kilometers away from the aircraft carrier. ? Other warships take protecting the operational safety of the aircraft carrier as the first priority, followed by supporting the attack mission of the ship and undertaking the search and rescue work of personnel. The role of warship battle group includes: protecting the use and safety of maritime transport channels. Transportation and task execution of amphibious troops. Cooperate with land-based aircraft to form and maintain air superiority in specific areas. Meet the needs of national interests by means of military display.

? In general combat areas, the US military usually uses a battle group consisting of 1 aircraft carrier, equipped with four anti-aircraft missile cruisers, four anti-submarine destroyers and 1-2 attack week nuclear submarines. The controllable sea and air area of carrier aircraft of single carrier battle group can reach 800- 1000 square kilometers; Four single-carrier battle groups can control the sea and airspace area of more than 960 thousand square kilometers by cooperating. When participating in a war in a medium threat area, a battle group consisting of two aircraft carriers, eight air defense cruisers and destroyers, four anti-submarine destroyers and destroyers, and two to four attack nuclear submarines is usually used. When entering a large-scale conventional war, three aircraft carriers are often used as the core to form a battle group, nine anti-aircraft missile cruisers and destroyers, 14 anti-submarine destroyers and frigates, and five or six attack nuclear submarines. Carry out large-scale air-ship integrated cooperative operations.

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The American aircraft carrier battle group can guarantee a strong attack capability and an unparalleled self-defense capability. Take the battle group of two aircraft carriers as an example, which is generally equipped with three layers of firepower. The first floor is the external defense zone, which is more than 400 kilometers away from the aircraft carrier 180-400. Eight early warning aircraft, eight electronic warfare planes, six reconnaissance planes, shipborne phased array radar and attack nuclear submarines are responsible for the continuous search in the air, water and underwater. When an attacking enemy is found, 70 attack planes, 50 fighter planes, 20 anti-submarine planes and more than 400 long-range cruise missiles can attack land, air, water and underwater targets at the same time. The second floor is the central defense zone, which is 45- 180 kilometers away from the aircraft carrier. Ship-borne radar, sonar and more than 40 helicopters are responsible for searching and tracking incoming targets that break through the first sub-line. They can intercept incoming targets with 350 long-range cruise missiles, 260 anti-ship missiles, more than 600 anti-aircraft missiles and anti-submarine torpedoes. The third layer of defense is mainly used for self-defense, mainly using tactical missiles, torpedoes, naval guns and other short-range weapons to intercept incoming targets.

? Finally, is the carrier battle group in the 2 1 century? The use of naval warfare is under discussion. ? Supporters of the aircraft carrier battle group believe that the aircraft carrier battle group still provides unparalleled firepower and power projection capabilities. ? Opponents believe that warship battle groups are increasingly vulnerable to attacks by constantly improving firepower ships and cruise missiles, especially missiles capable of supersonic flight and extremely tortuous flight, which can avoid anti-missile systems. ? At the same time, it should be noted that the aircraft carrier battle group was designed for the Cold War and played little role in establishing coastal control.