Russia, China, the United States, the United Kingdom and France have agreed that a further spread of nuclear arms and a nuclear war should be avoided, says a joint statement by the five nuclear-weapon powers published by the Kremlin on January 3.

It says the five countries, which are the permanent members of the United Nations Security Council, consider it their primary responsibility to avoid war between the nuclear states and to reduce strategic risks, while aiming to work with all countries to create an atmosphere of security.

"We affirm that a nuclear war cannot be won and must never be fought," the statement reads.

"As nuclear use would have far-reaching consequences, we also affirm that nuclear weapons — for as long as they continue to exist — should serve defensive purposes, deter aggression, and prevent war."

“We each intend to maintain and further strengthen our national measures to prevent unauthorized or unintended use of nuclear weapons.   We reiterate the validity of our previous statements on de-targeting, reaffirming that none of our nuclear weapons are targeted at each other or at any other State.

“We underline our desire to work with all states to create a security environment more conducive to progress on disarmament with the ultimate goal of a world without nuclear weapons with undiminished security for all.  We intend to continue seeking bilateral and multilateral diplomatic approaches to avoid military confrontations, strengthen stability and predictability, increase mutual understanding and confidence, and prevent an arms race that would benefit none and endanger all.  We are resolved to pursue constructive dialogue with mutual respect and acknowledgment of each other’s security interests and concerns.”