War letters are wars on their own

During the war Soldiers would send these war letters to their Children, Wives, Girlfriends, Fiances, Mothers, Fathers, etc. These letters took days to send back to the family and were a one-way. Which means they sent the letters and never received a reply. Im guessing that could have been a frustration, or one of them could have been that they wrote something wrong in the mailing address and the family could have never received it. But I think the biggest is the fact that some soldiers ended up dying before the letter even reached their love ones. There were plenty of frustrations that could have occurred but sadly i'm not in the soldiers shoes.