Latest News About Unrestricted Submarine Warfare

Updated 2026-05-17 14:04

Here are the latest widely reported developments on unrestricted submarine warfare.

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Unrestricted submarine warfare | Britannica

Other articles where unrestricted submarine warfare is discussed: 20th-century international relations: Attitude of the United States: …4, 1915, Germany declared the waters around the British Isles a war zone in which Allied ships would be sunk, without warning if necessary. While this procedure dispensed with traditional civilities like boarding, search and seizure, and care of civilians, effective submarine warfare required it. Underwater craft relied on stealth…

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Unrestricted submarine warfare

Unrestricted submarine warfare is a type of naval warfare in which submarines sink merchant ships such as freighters and tankers without warning, as opposed to attacks per prize rules (also known as "cruiser rules") that call for warships to search merchantmen and place crews in "a place of safety" (for which lifeboats do not qualify, except under particular circumstances) before sinking them, unless the ship shows "persistent refusal to stop ... or active resistance to visit or search". To...

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