how does the latin boys study foreshadow what happens to them later in the chapter?

Gene reads Finny part of a Latin translation (from Caesar’s Gallic Wars). Gene had written it for him and although Finny does not believe Caesar, he does admit the existence of World War 2. Brinker will soon disturb Finny and Gene and drag them to an impromptu court where charges of betrayal of a friend, like in Caesar, will be the theme.