Cause Afganistan is no military power.

Its different when China, India or Russia would go
into an open conflic with the US.

the good thing about Nukes is actually that they!
saved the peace in the second part of the 20th Centure.
Because of the obvius danger to make the enemy have to use them.
Nevertheless, back then there was struggle between political systems, and not a struggle for ressources,
wich will develop in the next decades.