1. it was very hard on the horses. they were scared and not used to that kind of travel. the horses get pretty seasick.
2.fortunately joey finds a solace in the visits of captain nicholls, who talks to joey in a soothing manner calming him down.
3. all of the tears in his eyes were the dead just lying there.
4. the sound of the machine gun
5. it was to start the battle
6. nicholls is killed in action while invading a german camp. he was riding joey when he died, leaving the horse uncounted and roaming through the war zone