A US Navy FA-18 Super Hornet is seen from a KC-135 air refuelling tanker during 'Keen Sword', US-Japan military exercise above the South China sea on December 9, 2010. Around 10,500 US service members and their Japanese Self Defence Forces counterparts participated in the eight-day-long exercise which started on Decomber 3. AFP PHOTO / TOSHIFUMI KITAMURA (Photo credit should read TOSHIFUMI KITAMURA/AFP/Getty Images)
