The Belgian navy Karel Doorman-class frigate Leopold I (F930), left, and the Portuguese navy frigate NRP Francisco de Almeida (F334), right, conduct a replenishment-at-sea with the Henry J. Kaiser-class underway replenishment oiler USNS Patuxent (T-AO 201), center, as the guided-missile destroyer USS Gridley (DDG 101)

ATLANTIC OCEAN (Aug. 16, 2019) The Belgian navy Karel Doorman-class frigate Leopold I (F930), left, and the Portuguese navy frigate NRP Francisco de Almeida (F334), right, conduct a replenishment-at-sea with the Henry J. Kaiser-class underway replenishment oiler USNS Patuxent (T-AO 201), center, as the guided-missile destroyer USS Gridley (DDG 101) transits behind them. Gridley is underway on a regularly-scheduled deployment as the flagship of Standing NATO Maritime Group 1 to conduct maritime operations and provide a continuous maritime capability for NATO in the northern Atlantic. (U.S. Navy photo by Mass Communication Specialist 2nd Class Cameron Stoner/Released)