IMO it's an attempt to highlight the nonsense of the war and how the only thing that can be highlighted on it is the individual valor actions, unconnected from the general war politics. Honour to those who have done inmortal actions, based on inmortal and really important matters (Sacrifice, honor, courage, idealism), while all the rest is just unimportant and will fade away with time. i.e. when time passes by, you no longer care about who started the war and why, but you tend to remember the sacrifice and courageous actions of those involved.
P.S. anyone who has read the Iliad by Homero has found in the book more references to how it started and why, or to how courageously the main actors involved acted?
