US-China RelationsUS Second Fleet Declared Fully Operational to Challenge China’s Arctic AmbitionsSavePrintChina's icebreaker, Xuelong 2, at a launch ceremony at a shipyard in Shanghai, China on Sept. 10, 2018. STR/AFP via Getty ImagesChriss Street1/3/2020|Updated: 1/3/2020News AnalysisThe U.S. Navy’s Second Fleet that was disbanded during the Obama years has been reactivated to full-operational capability to meet challenges, such as China’s increasing activity in the Arctic.We had a problem loading this article. Please enable javascript or use a different browser. If the issue persists, please visit our help center.