I think what we are suppost to take for granted and we arent, is that the concept of Plantary warfare is a given..... what we see in the screen of movie is only the high lights of the Global campain. i imagine that attacks in utapu were huge, massive, of planatary proportions, i dont think that the entire sep. army was in that one sink hole.......
i also think that a "ground assult" we ar talking about tens of millions of units ( droids, stromtroopes etc)
can any one get stats on a SD and the other large class ship the Empire has.....??? as far as transport capabilities etc. Also a full equiped and operational DS what is the number of ppl, ships transports etc?