It is the ww1 in Germany.Its the beginning of it and nobody knows much.At 18 you are force to go to the army.Your best friend is 17 soon will be turning 18.When he goes to the army he will fight you letters.You know he has become a man and when he gets back he will be a man already decided what he wants to do with his life,have a family and love his wife.You are the perfect choice for him