In the U.S., since the 2000s, with the strong growth of China's economy and military, China has become a threat to U.S. interests in the Indo-Pacific region. Due to a breakthrough in U.S.-India relations has pushed Washington to devote more attention to this region, President Obama articulated the concepts of “pivot” or "rebalance" to Asia, and Secretary of State Hillary Clinton published an article in 2011 ("America's Pacific Century"), in which she argued that the U.S. would build a multipronged approach of military cooperation, diplomatic engagement, and free trade negotiation to establish its position in the Indo-Pacific region.