I don't get it can you give me more details plz
A. He reflects back and describes his initial optimism of the war.
Everyone initially feels that optimism going into a battle. The idea of victory is something easy to see. But it gives the idea that possibly it may not turn out exactly as he hopes in the final sentence.
A comma and a conjunction always work well but it really depends on the sentences you are combining.
Uno reverse.......................0
