North Korea experts say that a nuclear test by the reclusive country would not only prove its nuclear capability, but further worsen the nuclear stalemate and alter regional dynamics.

A nuclear test is expected to trigger U.S. intervention and worsen public opinion in South Korea and Japan while concern over a regional arms race will grow in China.

A South Korean diplomat in Beijing says that if Pyongyang becomes a nuclear power through nuclear testing and begins providing weapons to terrorists, many things will change such as U.S. terrorism policies.