US ready for a tactical nuclear strike on North Korea
The US recently sent B-2 stealth bombers to Guam, where they joined B-1 and B-52s, the other bombers in the US's fleet.
While the B-2 and B-52 are known as the air leg of the US's nuclear triad, as they carry nuclear-capable air-launched cruise missiles, another, smaller US nuclear weapon has undergone some upgrades that may lend itself to strike on North Korea.
The B-61, a tactical nuclear gravity bomb that the B-2 can carry 16 of, has been modified in recent years to increase accuracy and its ability to hit underground targets, though the modied version has not yet been deployed.
Not only will the B-61's new modification make it ideal for destroying dug-in bunkers, the kind which Kim Jong Un may hide in during a conflict, but it has an adjustable nuclear yield that could limit harmful radioactive fallout after a nuclear attack.