THE NUCLEAR SECURITY SUMMIT [NSS]IS A WORLD SUMMIT,AIMED AT PREVENTING NUCLEAR TERRORISM AROUND THE GLOBE.THE FIRST SUMMIT WAS HELD IN SEOUL,SOUTH KOREA,IN 2012.
THE THRID SUMMIT WAS HELD IN THE HAGUE,NETHERLANDS,ON MARCH 24-25 2014.THE FOURTH SUMMIT WAS HELD IN WASHINGTON D.C. ONMARCH 31-APRIL 1,2016.

BACKGROUND
IN 2009,U.S. PRESIDENT OBAMA DELIVERED A SPEECH IN PRAGUE IN WHICH HE CALLED NUCLEAR TERRORISM ONE OF THE GREATEST THREATS TO INTERNATIONAL SECURITY.WITH THAT IN MIND,OBAMA HOSTED THE FIRST NUCLEAR SECURITY SUMMIT [NSS] IN WASHINGTON DC IN 2010,IN ORDER TO DRAW ATTENTION,AT THE HIGHEST POSSIBLE LEVEL,TO THE NEED TO SECURE NUCLEAR MATERIAL AND THUS PREVENT TERRORISM.FORTY-SEVEN COUNTRIES AND THREE INTERNATIONAL ORGANISATIONS PARTICIPATED IN THE FIRST SUMMIT.IN 2012 THE SECOND NSS WAS HELD IN SEOUL.FIFTY-THREE COUNTRIES AND FOUR INTERNATIONAL ORGANISATIONS WERE INVITED.THE FIRST SUMMIT WAS CONCERNED WITH MAKING POLITICAL AGREEMENTS,WHILE THE FOLLOW-UP IN SEOUL FOCUSED ON THE PROGRESS MADE ON IMPLEMENTING THOSE AGREEMENTS.
THE THIRD NSS,IN THE HAGUE IN 2014,CENTRED ON THE RESULTS ACHIEVED AND THE FUTURE.

The big boys summit.