Which issue continues to raise concern from the world community regarding the nations of india, iraq, pakistan, and north korea?

The issue of nuclear proliferation continues to raise concern from the world community regarding the nations of India, Iraq, Pakistan, and North Korea.
The spread of nuclear weapons is known as nuclear proliferation.
The threat of nuclear proliferation is very serious business. Its is everywhere and as a global community we formed a treaty on the non proliferation of nuclear weapons.

The correct answer is the hindu kush mountains.