Daru reflects the plight of France in the colonial conflict in Algeria by being swept up in a situation in which he wants no part. When the gendarme Balducci brings the Arab to Daru's school, he insists that Daru transport the prisoner to the police. Daru is beside himself, insisting that it isn't his job, but Balducci tells him that many people do many jobs in wartime.
This frustrating situation in which Daru find himself is reflective of the situation of those who did not want to take a side in the conflict in Algeria. This frustration is emphasized in the climax of the story in which Daru, who simply was trying to do the right thing by giving the Arab a choice, sees the Arab going to turn himself in and finds threatening language written on his school blackboard.
The three questions you have asked are distinct but interrelated. This answer focuses on the first question and draws on some elements of the last one, as morality is the central component of the individual and national plight...
(The entire section contains 3 answers and 598 words.)