2. 1953
US tests first hydrogen
bomb
1. 1949
USSR’s first nuclear test
3. 1974
India tests its first nuclear device
4. 1981
Soviet war in Afghan-
istan
continues
5. 1991
End of cold
war
6. 2007
North Korea conducts
nuclear
test
7. 2015
Climate change and nuclear
weapons
modernisation
8. 2017
Trump’s
comments
on climate
change and nuclear
proliferation
9. 2018
Failure of world leaders to address the largest threats to humanity
3. 1974
India tests its first nuclear device
1. 1949
USSR’s first nuclear test
2. 1953
US tests first hydrogen
bomb
6. 2007
North Korea conducts
nuclear test
4. 1981
Soviet war in Afghanistan
continues
5. 1991
End of cold
war
7. 2015
Climate change and nuclear
weapons
modernisation
8. 2017
Trump’s comments on climate change and nuclear
proliferation
9. 2018
Failure of world leaders to address the largest threats to humanity