Ready, Set, Don't Go

Shortly after Mark and jack graduate Mark tells jack he is planning to join the military.
"Always write to me" Mark said pulling life long best friend in for a hug /before walking toward the bus.
"I will. God, no, Mark promise me you'll come back safe" Jack tried, to no avail, to hold back his tears.
"Stop you're going to make me cry I'll write and I'll come back in one piece. I love you" Mark replied choking back tears.
After one last hug