What is the main conflict in Naples '44 by Norman Lewis?

Naples '44, by Norman Lewis, is a compilation of diary entries from famous author and British World War II veteran, Norman Lewis. Lewis is a young officer serving as a British intelligence agent. He lands in Italy with the Fifth Army, after much of the country has been taken back from the Axis Powers and Mussolini has surrendered and died. Lewis represents the British and their support for the Fifth Army and acts as a counter-intelligence agent in Naples, Italy.