David Petreaus took over ISAF command, he had overseen the war in Afghanistan from his perch as chief of Central Command in the United States.

CNN: US Marine general takes over NATO forces in Afghanistan

John Hendren, NPR News, traveling with the Pacific Command Chief in Singapore.

NPR: U.S. Balances Relationships with Pakistan, India

Wild said her son always wanted to go into the military, like his father, who is a command chief in the Air Force Reserve at Dover Air Force Base in Delaware.

NPR: Marines Killed In Training Were Young, Lives Ahead