Since the first nuclear weapons test on 16 July 1945, over 2,000 tests have taken place across the globe, often with little regard for the devastating consequences on human health and the environment. The dangers posed by nuclear fallout and the potential for catastrophe have only grown as weapons technology has become more powerful. In response to these concerns, the United Nations declared 29 August as the International Day against Nuclear Tests in 2009, aiming to raise global awareness of the effects of nuclear testing and to promote a world free of nuclear weapons.
The Origins and Purpose of the International Day Against Nuclear Tests
The United Nations General Assembly adopted resolution 64/35 on 2 December 2009, during its 64th session, unanimously establishing 29 August as the International Day against Nuclear Tests.
This date was chosen to commemorate the closure of the Semipalatinsk Nuclear Test Site in Kazakhstan on 29 August 1991.
Objectives of the Day
- Raise awareness about the dangers and consequences of nuclear testing.
- Educate people globally about the urgent need for the cessation of all nuclear explosions.
- Encourage international efforts to eliminate nuclear weapons and achieve global disarmament.
Global Observances and Activities
Since its inaugural observance in 2010, the day has been marked by a range of global activities that promote nuclear disarmament.
Common Observances Include,
- Conferences and symposia
- Public exhibitions and lectures
- Educational and awareness campaigns
- Competitions and publications
- Media broadcasts and advocacy initiatives
Furthering Disarmament: The Role of 26 September
Recognizing the need for more concrete action, the UN also designated 26 September as the International Day for the Total Elimination of Nuclear Weapons in 2014.
Purpose of the Day
- Mobilize global efforts for complete nuclear disarmament.
- Reinforce the message that total elimination is the only absolute guarantee against nuclear use or threat.


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