I would prefer Continental War as well. It's irrational and perhaps indefensible, but I feel WWI is disrespectful.
Edit: disregard. Saw it was changed
Also, CW is indeed kind of long. How about The First Great War? First War of Dwilight? Or perhaps we should wait until something actually happens before naming anything.. our characters can't really be talking of DCW1, can they?
Edit 2: disregard. Issue addressed below