The fleet replenishment oiler USNS John Lenthall (T-AO 189) refuels the guided missile destroyer USS Cole (DDG 67) during an underway replenishment in the Atlantic Ocean March 26, 2014, while en route to Scotland to participate in Joint Warrior 14-1. Joint Warrior is a United Kingdom-led exercise designed to improve interoperability between allied navies and prepare participating crews to conduct combined operations while deployed.