United States General George Patton European commander said in 1944, "the enemy's guts will be grease for my tanks." I like his attitude. General 'Black Jack' Pershing's attitude was even better in the early 1900s in the Philipines fighting Islamic insurgents. Do a Google for details. Pershing was one tough SOB.
No kidding! The Jihadis of HIS day went on a rampage in the Phillipines and he caught fifty of them. He had 49 of them stood up against a wall and shot! Then buried the bodies in a common hole full of pig guts. He let the LONE SURVIVOR go. That area was passive to Jihadi activity for the next 50 years.