Complex sentence: During the 2003 invasion of Iraq, Moulton was a lieutenant in charge of one of the first platoons to enter Baghdad, and he would serve a total of four tours of duty in Iraq from 2003-2008.
Split into simpler sentences: During the 2003 invasion of Iraq, Moulton was a lieutenant in charge of one of the first platoons to enter Baghdad. He served four tours of duty in Iraq from 2003-2008.