Unpublished WWI Images Show Eerie Machinery of WarA previously unpublished set of World War I images offers unusual views of the conflict.German officers stand near an observation balloon near the Western Front in this handout picture taken in 1915. Archive of Modern Conflict / ReutersPrintJune 26, 2014, 11:24 AM UTC / Updated June 26, 2014, 11:35 AM UTC