International Day for the Complete Abolition of Nuclear Weapons: 26 September

·        International Day for the Complete Abolition of Nuclear Weapons is observed on 26 September.

·        The day aims to address one of humanity's most difficult challenges to peace.

·        The establishment of the International Day for the Total Abolition of Nuclear Weapons signaled a shift in the nuclear weapons debate.

·        Since the year 2014, International Day for the Total Elimination of Nuclear Weapons is being observed every year.

Important facts

About nuclear weapons

v A nuclear weapon is an explosive device that derives its destructive power from a combination of nuclear reactions, either fission or fusion reactions.

v Eight countries have declared that they have nuclear weapons: the US, Russia, Britain, France, China, India, Pakistan and North Korea.

v The US spends about $25 billion (about £20 billion) on nuclear weapons every year.

v The bikini was named because the designer wanted the bikini to be a revealing swimsuit, causing an explosive reaction at Atoll.