Legion of the United States

http://en.wikipedia.org/wiki/Legion_of_the_United_States < your wiki link

I recall it being called a Legion since the Congress had up til now blocked any formation of a state army(Washington supported having one) and calling it a Legion was a Take That.

The wiki page shows it seems to have a strong combined arms structure compared to European ones(if I'm not mistaken). I wonder how US military doctrince would evolve if the combined arms focus was kept.
 
Keep the US army's emphasis on hit n run tactics and away from set piece battles. Make us better Indian fighters and less effective additions to WW1?
 
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