The production of America's new B61-13 gravity bomb, which is 24 times more powerful than the Hiroshima bomb, is seven months ahead of schedule. The new bomb is being developed due to the 'critical challenge and urgent need' for a new nuclear deterrent. The global nuclear arms race is becoming scarier as more countries, including Russia, China, North Korea, and Britain, boost their stockpiles of warheads. The US Trump administration's frosty attitude towards its allies in Europe and Asia is making a global nuclear arms race more likely as these countries no longer see the US as a reliable guarantor of nuclear protection.