I have just finished The World within War by G Linderman. Its a serious book on the effect of combat on the fighting soldier. Almost totally based on reflections but it isn't just a book of reflections, it puts them into perspective. It also looks on the impact of the Home Front and what the soldiers thought about a number of things, Officers, Red Cross entertainers etc.
Its very difficult to read at times and a lot of home truths are spoken. There is an excellent chapter Discipline not the American Way. It doesn't say that the Americans were not disciplined but in many ways their discipline differed between branches Marines, Para and Army and with other allied forces. It looks at the advantages and disadvantage of the approach and when talking about POW situations compares the experience between UK and American POWs. Both had pluses and minuses.
Its a good read but don't expect it to be an easy read.