As the world faces a growing nuclear threat exacerbated by Russia's invasion of Ukraine, among other factors, this series explores the strategy and prospects of Prime Minister Fumio Kishida's nuclear disarmament-related diplomacy. This is the second installment in a three-part series.

Prime Minister Fumio Kishida stressed the importance of unity in the international community to realize a world without nuclear weapons in his speech at the Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) in New York on Monday.

It's not the first time for such a dire warning. Here's a brief look at why Guterres and others are raising the alarm now.

The United Nations chief is warning that “humanity is just one misunderstanding, one miscalculation away from nuclear annihilation.”

United Nations (United States) (AFP) - UN head Antonio Guterres warned Monday that a misunderstanding could spark nuclear destruction as the United States, Britain and France urged Russia to stop "its dangerous nuclear rhetoric and behaviour."

U.N. Secretary-General Antonio Guterres is sounding the alarm over the war in Ukraine, nuclear threats in Asia and the Middle East, and other tensions