The U.S. Navy's newest guided-missile destroyer, the future USS Zumwalt, docks in Baltimore, Oct. 13, 2016. The largest destroyer ever built for the US Navy, the USS Zumwalt, was commissioned on Oct. 15. (Photo/Agencies)
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The U.S. Navy's newest guided-missile destroyer, the future USS Zumwalt, docks in Baltimore, Oct. 13, 2016. The largest destroyer ever built for the US Navy, the USS Zumwalt, was commissioned on Oct. 15. (Photo/Agencies)