New York- Nigeria has signed the Nuclear Weapons Prohibition Treaty, joining dozens of other countries that signed the treaty to ban nuclear weapons amid tensions over North Korea's nuclear and missile tests.
Manila was among the 121 United Nations member-states which agreed to the prohibition amid tensions over North Korea's nuclear and missile tests.
The United States and other countries possessing nuclear weapons did not take part in the negotiations and do not plan to sign the treaty.
The treaty outlaws the use, threat of use, testing, development, production, possession, transfer and stationing in a different country of nuclear weapons.
In theory, the Treaty enters into force in three months (90 days).
Disarmament campaigners hailed the treaty as an important step but most NATO members boycotted the talks to prepare the text, as did Japan - the only country to have suffered nuclear attacks, in 1945.
The United States, Britain, France and others, including Australia, boycotted the event at the annual United Nations gathering of world leaders on September 20. "The world will only be safe if we eliminate all weapons of mass destruction".
Also, numerous world's almost 200 nations are quite capable of building nuclear weapons - if they decide to do so. It received the support of 122 nations when it was adopted by vote in July.
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With this treaty, the global community made it clear that nuclear weapons are not only inhuman, immoral and ethically indefensible; but also they are illegal, he said.
"Nuclear arms offer a false sense of security", the archbishop said.
"The heroic survivors of Hiroshima and Nagasaki - the hibakusha - continue to remind us of the devastating humanitarian consequences of nuclear weapons", Guterres said.
The few countries supportive of the treaty in Europe include Ireland and Austria.
The President of the General Assembly said "It will raise awareness about the risks of nuclear weapons".
Also speaking was Peter Maurer, president of the International Committee of the Red Cross, who said the organization received a cable from Hiroshima on August 30, 1945 describing a "city wiped out", a great number of dead and over 100,000 wounded.
The treaty, which would ban the developing, stocking and threat of use of nuclear weapons, will apply only to signatory States.
Dr. Emily Welty, vice-moderator of the WCC's Commission of the Churches on International Affairs, attended the treaty's opening and signing ceremony. If they follow through by ratifying it, the treaty will take effect. Nuclear powers are also the only United Nations members with permanent Security Council veto power.