Navire-leurreLes navires-leurres (en Q-ships) étaient des petits navires marchands dissimulant des armes lourdes destinés à attirer les sous-marins ennemis en surface pour les couler au canon, leur petite taille ne justifiant pas le gaspillage d'une torpille par le sous-marin. Ils furent notamment utilisés lors des deux batailles de l'Atlantique, lors de la Première et Seconde Guerre mondiale. vignette|gauche|Q-ship britannique HMS Tamarisk. Ce sont de petits navires, cargos ou voiliers.
Merchant aircraft carrierA merchant aircraft carrier (also known as a MAC ship, the Admiralty's official 'short name') was a limited-purpose aircraft carrier operated under British and Dutch civilian registry during World War II. MAC ships were adapted by adding a flight deck to a bulk grain ship or oil tanker enabling it to operate anti-submarine aircraft in support of Allied convoys during the Battle of the Atlantic. Despite their quasi-military function, MAC ships retained their mercantile status, continued to carry cargo and operated under civilian command.
Opération Paukenschlagthumb|Le tanker Dixie Arrow torpillé par le sous-marin allemand U-71. thumb|Le tanker MS Pennsylvania Sun torpillé par le sous-marin allemand U-571 le 15 juillet 1942. L'opération Paukenschlag (Unternehmen Paukenschlag pour les Allemands opération Drumbeat pour les Alliés) désigne l'attaque de la côte Est des États-Unis par des U-Boote allemands pendant la Seconde Guerre mondiale. L'opération, qui s'inscrit dans le cadre de la seconde bataille de l'Atlantique, fut surnommée la par les commandants des sous-marins allemands.
Sailing ship tacticsSailing ship tactics were the naval tactics employed by sailing ships in contrast to galley tactics employed by oared vessels. This article focuses on the period from c. 1500 to the mid-19th century, after which sailing warships were replaced with steam-powered ironclads. Since ancient times, war at sea had been fought much as on land: with melee weapons and bows and arrows, but on floating wooden platforms rather than battlefields. Though the introduction of guns was a significant change, it only slowly changed the dynamics of ship-to-ship combat.
Naval strategyNaval strategy is the planning and conduct of war at sea, the naval equivalent of military strategy on land. Naval strategy, and the related concept of maritime strategy, concerns the overall strategy for achieving victory at sea, including the planning and conduct of campaigns, the movement and disposition of naval forces by which a commander secures the advantage of fighting at a place convenient to themselves, and the deception of the enemy. Naval tactics deal with the execution of plans and manoeuvring of ships or fleets in battle.
