ignoring the normal pressures of modern warfare ......
throw enough rocks and urine and faeces at a guy ..... have him face young men and women who approach him with smiles on their faces and then detonate explosives in his face ... have him scrape up the remains of colleques ..... have him read notes from his political leaders from home that he is fighting an honourable war when the mass of the local population can't stand the sight of him .....
Is it any wonder 'some' are driven to the lowest level of behaviour ..... it doesn't surprise me one bit .... nor the behaviour of the Media and their 'joy' in discovering such activities .......