This is one of the most interesting campaigns in the history of warfare -- the conditions extreme, not only in physical conditions but pyschological as well. The infantry in rows of pup tents and not much else suffered from extreme boredom. PT boats were brought, for some months, into this theater ... the bad seas and high waves proved impossible for them -- but one can hardly imagine the difficulty of serving on such a small boat in such choppy seas and bitterly cold, high-wind blizzards of weather.
Some very important advancements were developed there -- especially the managment of logistics in beach landings -- later applied in all the allied landings in Africa, Europe and the Pacific, "timing patterns" -- that phrase we now use in football, came orginially from the necessity of flying blind on bombing runs, using only the clock, a constant airspeeed, and a heading. Radar was hardy born yet.
I can't imagine conducting a campaign in the conditions found in the Aluetians. Just the logistics had to be a nightmare.