
The first bombs, dropped on Hiroshima and Nagasaki, had an explosive power of around 20 kilotons of TNT and were enough to end World War II. However, these are small compared to modern weapons. A standard warhead today can be six times more powerful, while the largest US bomb could kill over a million people instantly.
Currently, nine nations possess nuclear arsenals, with the United States and Russia controlling about 90% of them. Geopolitical tensions are rising, and the arms-control treaties that once kept the peace are failing. With conflicts involving nuclear-armed states and the development of new military technology, the global situation is becoming more unstable. The original scientists saw the bomb as a deterrent that should never be used, a goal that now seems more important than ever.
