Arrange the following in chronological order:

(A) Chemical Weapons Convention (CWC)
(B) The Nuclear Non-Proliferation Treaty (NPT) between USA and Soviet Union
(C) Biological Weapons Convention (BWC)
(D) Iraq’s invasion of Kuwait (First Gulf War)

BCDA

The correct answer is Option 2 - BCDA

(B) The Nuclear Non-Proliferation Treaty (NPT) between USA and Soviet Union -1968
(C) Biological Weapons Convention (BWC) - 1972
(D) Iraq’s invasion of Kuwait (First Gulf War) - 1990
(A) Chemical Weapons Convention (CWC) - 1997 (entered into force)