W80

The W80 is a small thermonuclear warhead (fusion weapon, or hydrogen bomb) in the nuclear stockpile of the USA with an adjustable explosive yield of between 5 and 150 kT TNT. It was designed for deployment on cruise missiles and is the warhead used in the majority of nuclear-armed US Air Force ALCM and ACM missiles, and their US Navy counterpart, the BGM-109 Tomahawk. It is essentially a modification of the widely deployed B-61 weapon, which forms the basis of most of the current US stockpile. The very similar W84 warhead was used on the BGM-109G Gryphon GLCM.
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Inhalation and ingestion of other objects causing obstruction of respiratory tract