Most people associate the pacific front with the worst brutality and savagery seen in the second world war, with one of the biggest examples being the Marine Corps use of flamethrowers, but why was it not as common against the nazi war machine? Especially once GIs stumbled upon the concentration camps and they became less civilized in the fight against Germany in the late war. The only reason I can think of is the close quarters of clearing out tunnels and jungle warfare against Japan, but the late battles such as Iwo Jima and Okinawa were almost large scale sieges of the island with naval bombardment and artillery playing huge roles, seemingly similar to sieges of Nazi held towns or even Normandy. Was it a Marine Corps-specific tactic as they did not deploy to Europe?