I'm more in awe of his voluntary engagement into world war 2 and later into the resistance. His world war 1 participation was obligatory anyway, and WW1 was an aimless conflict.
In WW1 he fought alongside so-called regular people when it comes to education and social prospects, but he still left a very touching description of most of them, that won’t ever happen in a society like ours. WW2 was a total fuckup, from top (the French elites) to bottom (no more poilu spirit, which was understandable), no glory in it. Also, and afaik, Bloch was very fond of the medals he had received during WW1.