These are the 9 nuclear-armed countries and the 31 allies they've vowed to defend
There are about 13,885 nuclear weapons in the world. Here's an overview of the world's nuclear states and their arsenal.
There are about 13,885 nuclear weapons in the world. Here's an overview of the world's nuclear states and their arsenal.
The bomb fell for 44.4 seconds before detonating in a blast that would ultimately kill 140,000 people and destroy 90% of the city.