North Korea tested Hydrogen Bomb

North Korea has successfully carried out its first hydrogen bomb test.After the test, South Korea is in talks with the United States to deploy U.S. strategic assets on the Korean peninsula. The test also alarmed Japan and the White House. Hours after the nuclear test, The U.N. Security Council announced it would work immediately on significant new measures against North Korea.
Convention on Nuclear Safety
-The Convention on Nuclear Safety was adopted in Vienna on 17 June 1994.
-Its aim is to legally commit participating States operating land-based nuclear power plants to maintain a high level of safety by setting international benchmarks to which States would subscribe.
-The Convention is based on Parties’ common interest to achieve higher levels of safety which will be developed and promoted through regular meetings.
-The Diplomatic Conference to consider a Proposal by Switzerland to amend the Convention on Nuclear Safety was held on 9th February 2015 at the IAEA Headquarters, in Vienna, Austria.
Convention on Physical Protection of Nuclear Material (CPPNM)
-The Convention on the Physical Protection of Nuclear Material entered into force on 8th February 1987. 
-The Convention is the only legally binding international instrument in the area of physical protection of nuclear material and one of the 13 international counter-terrorism instruments.