Because of the distance between the war theatres, warfare in the Far East and the Pacific region was of different manner in relation to Europe. The main burden was loaded on the back of the poor infantryman. But nothing was going on without amphibious operations, a daily event, nothing went on, in contrary to the European theatre.
Every war is brutal, but especially the war in the Pacific, because here ancient hostilities between yellow and other races focused together in unnecessary killing of civilians and prisoners.
Perhaps this was one of the reasons for the Americans for the fast and easy decision to bombard Japanese cities with a hail of napalm bombs, which didn't happen even to German cities like Hamburg or Dresden, followed additionally by atomic bombs on Hiroshima and Nagasaki. For an American soldier his Japanese opponent was inferior, yellow, some wild animal worth to be killed. For the Japanese soldiers a white man was something of a mystic monster against which his emperor led a holy war.
A lot of the Japanese soldiers' inborn brutality which came into effect in
their treatment of prisoners is to be explained by the words of the
well known publicist John Toland:
If they were so brutal against themselves there can be no doubt about their behaviour against the enemy.
On 24 April 1942, Tokyo's newspaper The Japan Advertiser, which was edited even in English, wrote in its introduction:
Such an expression of animosity against the opponent is finding good ground in wartime and leads to the outbreak of the dark side of the character. We don't have to wonder then why the war in the Pacific Ocean was so brutal and dirty, do we ?
(taken from the magazine Radar, Special Edition, No. 26)