US Secretary of Defense Leon Panetta (centre) boards his plane at Hickam Air force Base in Honolulu, Hawaii. The United States will shift the majority of its naval fleet to the Pacific by 2020 as part... more 

US Secretary of Defense Leon Panetta (centre) boards his plane at Hickam Air force Base in Honolulu, Hawaii. The United States will shift the majority of its naval fleet to the Pacific by 2020 as part of a new strategic focus on Asia, Pentagon chief Leon Panetta has told a summit in Singapore less