Trump nominates new PACOM, NORTHCOM chiefs

President Trump has nominated Navy Adm. Phil Davidson to become head of U.S. Pacific Command and Air Force Gen. Terrence O'Shaughnessy to become the chief of U.S. Northern Command, the Defense Department announced late Tuesday afternoon.

Davidson has been serving as chief of U.S. Fleet Forces Command since December 2014, according to his official biography. Before that, he was head of the U.S. 6th Fleet. He holds a bachelor's degree in physics and a master's degree in national security and strategic studies.

In addition to being head of NORTHCOM, O'Shaughnessy would also lead North American Aerospace Defense Command. He currently serves as commander of Pacific Air Forces; air component commander for PACOM; and executive director of the Pacific Air Combat Operations Staff at Joint Base Pearl Harbor-Hickam, HI.

Before that, O'Shaughnessy served as deputy chief of United Nations Command Korea and U.S. Forces Korea; head of Air Component Command, South Korea/U.S. Combined Forces Command as well as 7th Air Force, Pacific Air Forces, at Osan Air Base in South Korea, according to his bio.

O'Shaughnessy holds a bachelor's degree from the Air Force Academy and a master's degree from Embry-Riddle Aeronautical University.