Q-shipQ-ships, also known as Q-boats, decoy vessels, special service ships, or mystery ships, were heavily armed merchant ships with concealed weaponry, designed to lure submarines into making surface attacks. This gave Q-ships the chance to open fire and sink them. The use of Q-ships contributed to the abandonment of cruiser rules restricting attacks on unarmed merchant ships and to the shift to unrestricted submarine warfare in the 20th century.
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.
Second Happy TimeThe Second Happy Time (Zweite glückliche Zeit; officially Operation Paukenschlag ("Operation Drumbeat"), and also known among German submarine commanders as the "American Shooting Season") was a phase in the Battle of the Atlantic during which Axis submarines attacked merchant shipping and Allied naval vessels along the east coast of North America. The First Happy Time was in 1940–1941 in the North Atlantic and North Sea. Adolf Hitler and Benito Mussolini declared war on the United States on 11 December 1941, and as a result their navies could begin the Second Happy Time.
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.
