Queen Victoria's descendants were the rulers of many nations that were involved with each other in the war.
Explanation:
The rulers of most of the empires of the time had some relation to Queen Victoria by marriage alliance.
This meant that the war was ultimately broken out between relatives who fought against each other, which is of course, common in the time of monarchies as most monarchies were related to one another through marriage.
Queen Victoria's relatives included the royal family of the Austria Hungary empire, The German king and the Tsar Nicholas II of Russia, and of course the royal family of England.
Southern states and that are small like Tennessee
France is 1, they have nuclear weapons and have signed and ratified the NPT. 2 is Pakistan, they have conducted tests and claim that they have nuclear weapons, but haven't signed the treaty. Israel is 4 because it hasn't declared itself and is ambiguous when it comes to nuclear weapons, but it is suspected that they have it. Iraq is 3, they were invaded because it was feared that Sadam's regime has nuclear weapons and is ready to use them.