What is the main conflict in Night Soldiers by Alan Furst?

In Chapter Five, the reader becomes aware that Khristo's journey represents the conflict in this novel. The conflict itself is centered around the themes of man against society, man against the elements, and the brotherhood of man. At the end of the story, Khristo is rewarded for his labors by being reunited with the American woman, Faye Berns, and the stage is set for the lives of these characters to once again intertwine in the espionage ridden years of the Cold War.