I don't remember what famous person made the quote "War is Hell".  It is an accurate statement, of course.  Season 4 of the Bellamy's follows them through the first World War.  I am sure that the scripts were historically accurate. Season 4 upholds the series tradition of EXCELLENT acting, plots, and production quality.  I could not give 5 stars because I found the amount of time and detail devoted to war-time plots became a little depressing.