by P.J. REILLY
Demetrius Whitsett's father, Jermaine, served in Iraq for a year in 2004.
And Jermaine Whitsett's U.S. Army unit is back in the Middle East right now, but, due to an injury, he had to stay home.
So Demetrius, 11, a fifth-grader at Adamstown Elementary School, already knew what it was like ...