U.S. military shifts to Asia to address imbalanced of power File photo: U.S. Navy Kidd Class Guided Missile Destroyer USS Chandler (DDG 996) cruises near downtown Seattle, Washington, during an exercise in Puget Sound May 13, 1997. The U.S. sold several Kidd Class destroyers and other arms to Taiwan. The USS Chandler was recommissioned as the ROCS Ma Kong on Nov. 3, 2006. rlw//U.S. Navy/Shawn Handley/FILE UPI NEW YORK, March 13 (UPI) -- The U.S. Defense Department needs to shift its focus to the Asia-Pacific theater to address an imbalance in power, a U.S. security adviser said. Tom Donilon, national security adviser to U.S. President Barack Obama, explained the so-called pivot to the Asia Society in New York. With the Iraq war over and U.S. forces preparing to leave Afghanistan, Deputy Secretary of Defense Ashton Carter said last year the Asia-Pacific region was "one of the most prominent and important" issues for the Pentagon. Donilon emphasized the point by saying it "was clear that there was an imbalance in the projection and focus of U.S. power" in the region, the Pentagon's news agency quoted him as saying. He stressed, however, that the pivot wasn't just a military doctrine but one that includes trade, investments and political engagement. "We need open and reliable channels to address perceptions and tensions about our respective activities in the short-term and about our long-term presence and posture in the Western Pacific," he said. Last year, Seth Jones, an analyst at policy center Rand, said "pivot" meant overlooking an evolving al-Qaida in the Middle East and North Africa.