World War 3? US tests 'most dangerous nuclear weapon                        ever produced' amid North Korea row

THE United States has carried out a second test of a bomb, described as the most dangerous nuclear weapon ever produced, as tensions with North Korea escalate

US authorities confirmed the test was successful and the B61-12 gravity bomb is expected to go into production within three years. 

The B61-12 gravity bombs were 'inert' but they were dropped from F-15E fighter jets at Tonopah Test Range in Nevada on August 8, the National Nuclear Security Administration said.

The tests were intended to check the bomb’s “non-nuclear functions and the aircraft’s capability to deliver the weapon.”

Despite the weapons' nuclear capability being disabled the message to Kim Jong-un's North Korea could not be clearer.

A statement from the NNSA said: “B61-12 gravity bombs, without a nuclear warhead, were dropped from F-15E fighter jets at Tonopah Test Range in Nevada on August 8. The tests were intended to check the bomb's 'non-nuclear functions and the aircraft's capability to deliver the weapon.”

                   

                  50 nations sign United Nations             Treaty on the Prohibition of Nuclear.                                          Weapons

                                               

                                     

                                    

                                             

                                      

                                       

                                    Signing ceremony at UN Headquarters

Fifty countries on 20 September 2017 inked United Nations Treaty on the Prohibition of Nuclear Weapons.

Brazil was the first country to sign onto the ban, followed by nations from Algeria to Venezuela.

Fifty states as different as Indonesia and Ireland had put their names to the treaty; others can sign later if they like. Guyana, Thailand and the Vatican also have already ratified the treaty, which needs 50 ratifications to take effect among the nations that back it.

Under the terms and conditions of the treaty, the countries signing it would be barred from developing, testing, producing, manufacturing, otherwise acquiring, possessing or stockpiling nuclear weapons under any circumstances.

Under its terms, non-nuclear nations agreed not to pursue nukes in exchange for a commitment by the five original nuclear powers the U.S., Russia, Britain, France and China to move toward nuclear disarmament and to guarantee other states’ access to peaceful nuclear technology for producing energy.

Key highlights

• The treaty covers the full range of nuclear-weapons-related activities, prohibiting undertaking by any State party to develop, test, produce, manufacture, acquire, possess or stockpile nuclear weapons or other nuclear explosive devices.

• The prohibitions also include any undertaking to use or threaten to use nuclear weapons or other nuclear explosive devices.

• The treaty will enter into force 90 days after the 50th instrument of ratification, acceptance, approval or accession has been deposited.

First Scorpene-class submarine, INS Kalvari, delivered to Indian Navy

Background

The United Nations in July 2017 had announced that the Member States adopted a legally-binding treaty prohibiting nuclear weapons. It is the first multilateral nuclear disarmament treaty to be concluded in more than 20 years.

The treaty is described as a historic achievement. However, the nuclear-armed states have dismissed the ban as unrealistic, arguing it will have no impact on reducing the global stockpile of 15000 nuclear weapons.