U.S. presidential leadership may be the most important factor in whether the risk of nuclear arms racing, proliferation, and war will rise or fall in the years ahead. 

The CANWFZ is designed to reinforce the global nuclear nonproliferation system and safeguard the security of five key central Asian states that were once part of the Soviet Union and that now lie in the shadows of nuclear-armed Russia and China.

It has been just five years since the Treaty on the Prohibition of Nuclear Weapons was concluded in 2017, but the agreement is already helping to bolster the international nuclear nonproliferation and disarmament architecture.