Gilbert Keith Chesterton's writings of the wartime era have been called Anglo propaganda by critics, who mistakenly place Chesterton on the same level as the other nationalists of his day, forgetting that GKC was against the Boer War. His writings during the war years show a prescient knowledge that the Great War indeed was a war of ideas. With the closing of every coffin lid, the doorway to a new Christendom was slammed shut. Every clod of dirt which buried an entire generation of Europe's youth buried along with them the honor, dignity, and hope of Christian civilization.
Far from being an Anglo apologist, Chesterton I think provides a wonderful image of Just War.
From ILN Nov21 1914 The Current Scene:
"On every sword that is made by man, while the workshops of the world turn out that terrible kind of cutlery, ought to be graven the two mysterious phrases which were on the fairy sword of King Arthur. On one side was written 'Take me', and on the other 'Cast me away.' If no more than this dim fable recalled the doubtful hero fo Camelot, we should know that he defended Christendom against the heather. For the hightest mark of Chirstian civilization is this capacity for feeling that the sword is at once noble and unnatural; and the more unnatural it is, the more noble it is. "
WWI was the first truly industrial war, with aircraft, machine guns, chemical weapons, and all of the fruits of progress turned to battlefield implements.
What emerged from the ashes of the Great War were National Socialism, Communism, and a cloud of self-doubt and lost identity which still covers the West.