[infowarrior]

Even in the Civil War the Confederate States needed a federal army to fight the Union.

Beg do differ here... The US Civil War of 1861-1865 was fought largely by units which were privately raised at a state level. This was, perhaps the last war in our history where regiments levied by individual states were a prominent factor...

the infowarrior

[Hugin]

True individual units were raised by states, but the command structure was federal. And they were regular army units, not militia. The states did have separate militia units under the command of the governors, which fought when the state was invaded, and also carried out law enforcement functions.