President Barack Obama makes phone calls to 10 American service members stationed around the world, from his vacation rental home in Kailua, Hawaii, Dec. 24, 2011. WHCA Presidential Communications Officer CPT Mallory Fritz and Military Aide Lt. Col. Sam Price coordinate the calls in the background. (Official White House Photo by Pete Souza) (by The White House)

President Barack Obama makes phone calls to 10 American service members stationed around the world, from his vacation rental home in Kailua, Hawaii, Dec. 24, 2011. WHCA Presidential Communications Officer CPT Mallory Fritz and Military Aide Lt. Col. Sam Price coordinate the calls in the background. (Official White House Photo by Pete Souza) (by The White House)