Q. Consider the following statements regarding nuclear non-proliferation.
1.Only four countries have gone on to test and develop nuclear arsenals after enforcement of Nuclear Non-Proliferation Treaty (NPT).
2.The only surviving arms control treaty between Russia and the U.S. is the New START Treaty.
3.The Comprehensive Test Ban Treaty (CTBT) entered into force 10 years ago.
Which of the statements given above is/are correct?

[A] 1 only

[B] 2 and 3 only

[C] 1 and 2 only

[D] 1, 2 and 3

Answer: C
Notes:

Statement 1 is correct: In the last 50 years, only four more countries have gone on to test and develop nuclear arsenals. These are India, Israel, North Korea and Pakistan.

Statement 2 is correct: The only surviving arms control treaty between Russia and the U.S. is the New START Treaty. It imposes a ceiling on operational strategic nuclear weapons of 700 launchers and 1,550 warheads each. It expires in 2026 and there are no signs of any follow-on discussions.

Statement 3 is correct: Comprehensive Test Ban Treaty (CTBT) was concluded in 1996 but has yet to formally enter into force because two major powers, the U.S. and China, have yet to ratify it.

Source: ForumIAS