Claim: From 1915, soldiers on both sides use entrenching shovels as weapons so they routinely sharpened its edges; like how entrenching shovels were used in the brutal hand-to-hand fighting during the Battle of Stalingrad in WW II.
Evidence: From 1915, soldiers on both sides routinely sharpened the edges of entrenching shovels for use as weapons. In WW II, entrenching shovels were used in the brutal hand-to-hand fighting during the Battle of Stalingrad.