(chiefly historical) A blowing horn blown (especially by Vikings and other Germanic peoples) to warn others of an impending battle, and call them to it, or to signal its commencement.

plural of war-horn

An acoustic locator, vaguely resembling a tuba, used (by Japan during the World Wars) to provide early warning of incoming aircraft.

(fandom slang) An intense and sometimes hostile disagreement between shippers of rival ships in a fandom.

The numerous strategies and tactics available to military leaders during combat.

Alternative form of Phoney War

(US, politics, US politics, derogatory) Political efforts and initiatives to reduce women's rights, especially their reproductive rights.

A style of warfare that involves inflicting harm on civilians and destroying foodstuffs.

A war that comprises the use of conventional and non-conventional means by at least one side, which officially undeclares or denies involvement

(historical) A diplomatic dispute involving the United States and the United Kingdom over the Oregon Treaty boundary around the San Juan Islands, which began with an American farmer shooting a British company's pig in 1859.