The Butgenback Shuffle
Jan. 13, 1945: a Big Red One Soldier, from the 16th Infantry Regiment, in a protective snowsuit (aka Spok suit) advances toward enemy positions in the Butgenback sector of Belgium during the Battle of the Bulge.

PFC George Kelly of Philadelphia near Bütgenbach Belgium – January 1945. LIFE Magazine, George Silk Photographer. Kelly was KIA shortly after this picture was snapped, at age 25.
For more on the 16th Infantry’s trip through snow “knee-deep on the level and drifted to two to three times that depth where the wind could get at it,” check out the regimental historical society’s detailed account.