The US is set to reposition its Navy fleet with the majority of its warships to be assigned to the Asia-Pacific by 2020. But this military strategy has nothing to do with US-Chinese rivalry in the region, the defense secretary assures.

­The US would reposition its Navy so that 60 per cent of its warships would be assigned to the Asia-Pacificregion by 2020, compared to about 50 per cent now, US Defense Secretary Leon Panetta told senior civilian and military leaders from about 30 Asia-Pacific nations at an annual security forum in Singapore.

"Some view the increased emphasis by the United States on the Asia-Pacific region as some kind of challenge to China. I reject that view entirely," he said. "Our effort to renew and intensify our involvement in Asia is fully compatible… with the development and growth of China.