A city-destroying nuclear cruise missile has been unveiled by the United States after years of development in secret.

The first image of the AGM-181A Long-Range Standoff (LRSO) reveals a sleek, stealthy weapon designed to evade modern air defences, with a range said to exceed 1,500 miles. It will be armed with the W80-4 thermonuclear warhead, offering modernized yield, safety, and security features. It is thought the missile will have an adjustable nuclear yield between 5-150 kilotons, allowing uses ranging from tactical effect to destroying cities. A yield of 150 kilotons is ten times more powerful than the bomb dropped on Hiroshima in August 1945.

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