UK

Sundayherald: Revealed: how naval intelligence tested lethal 'plague bombs' off Scotland

IT was early in the morning on June 21, 1952, when the sound of two percussive 'whumps', coming from a small stretch of sea some 20 miles north of the Isle of Lewis heralded the dawn of a new age in British weaponry. The explosions came from two small 4lb bombs packed with plague ... and they had just been detonated in the open air at sea.
Britain had developed the most terrifying biological weapon of mass destruction ever created -- a weaponised form of the Black Death, the bubonic plague. Even in 1952, such tests were illegal. Germ warfare had been expressly forbidden under the Geneva protocol which all countries, except Japan and the USA, signed in June 1925.