HNLMS Van Amstel (F831) is a ship of the Karel Doorman-class of multi-purpose frigates (also known as "M-fregat" class) of the Royal Netherlands Navy. Built by the shipyard Koninklijke Schelde Groep in Vlissingen. The ship is named after the Dutch Captain Jan van Amstel.
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A naval fleet is the largest operational formation of warships in a navy, typically under a single command and organized for strategic missions. While modern fleets are permanent, multi-role forces (e.g., carrier strike groups), historical fleets were often ad hoc assemblies for specific campaigns. The term "fleet" can also synonymously refer to a nation’s entire navy, particularly in smaller maritime forces.
Fleets have shaped geopolitics since antiquity—from the trireme fleets of Athens to the nuclear-powered carrier groups of today—enabling power projection, trade protection, and deterrence. Multinational fleets, such as NATO’s Standing Maritime Groups, demonstrate their continued diplomatic-military role.
Following the September 11 attacks in 2001, several countries began military operations against Al-Qaeda and the Taliban during Operation Enduring Freedom (OEF) in Afghanistan. After the initial bombing operations, Operation Crescent Wind, OEF was the initial combat operations, and during 2002 and 2003.
This list covers United States and other states' forces and other forms of support for OEF from October 2001. Some nations' operations in Afghanistan continued as part of NATO's International Security Assistance Force (ISAF). For example, United States troops were deployed both in the OEF and ISAF.
Naval tactics and doctrine is the collective name for methods of engaging and defeating an enemy ship or fleet in battle at sea during naval warfare, the naval equivalent of military tactics on land.
Naval tactics are distinct from naval strategy. Naval tactics are concerned with the movements a commander makes in battle, typically in the presence of the enemy. Naval strategy concerns the overall strategy for achieving victory and the large movements by which a commandant or commander secures the advantage of fighting at a place convenient to himself.