Kim Jong-Un orders North Korea to increase production of nuclear weapons.

North Korea has unveiled new, smaller nuclear warheads and vowed to produce more weapons-grade nuclear material to expand the country's arsenal, as a US aircraft carrier arrived in South Korea for military drills. Experts say the images could indicate progress in miniaturising warheads that are powerful yet small enough to mount on intercontinental ballistic missiles capable of striking the US. North Korea has been ramping up tensions, firing short-range ballistic missiles on Monday and conducting a nuclear counterattack simulation last week against the US and South Korea, which it accused of rehearsing an invasion with their military exercises.