"Nuclear Weapon History" would be a very fun class IMO.

http://en.wikipedia.org/wiki/List_of_nuclear_weapons

http://en.wikipedia.org/wiki/Davy_Crockett_(nuclear_device)

http://en.wikipedia.org/wiki/Project_Azorian

The new Call of Duty game will feature these weapons which have the energy of small nuclear bombs yet contain no explosive. http://en.wikipedia.org/wiki/Kinetic_bombardment#Project_Tho...

Then there is this Vice video claiming that they found sources for purchasing nuclear devices: http://www.youtube.com/watch?v=0c4f4NJSB_4

http://en.wikipedia.org/wiki/M65_Atomic_Cannon

It's near impossible to successfully invade a nuclear armed country. Countries like North Korea have small nuclear weapons and have the potential to use them if an invasion was attempted. They shelter them deep underground or in heavily reinforced bunkers to prevent a country (like the US) from blowing up all of their nuclear devices first. So the US has to develop huge bunker busters such as http://en.wikipedia.org/wiki/Massive_Ordnance_Penetrator to counter that threat.

Also something that is neat is Variable Yield nuclear weapons. http://en.wikipedia.org/wiki/Variable_yield Many nuclear weapons can be adjusted depending on how big of a boom you want.

Many warheads http://upload.wikimedia.org/wikipedia/commons/7/7f/Trident_C...