A picture taken on March 12, 2017, shows an Iranian military speedboat patrols the waters as a tanker perpares to dock at the oil facility in the Khark Island, on the shore of the Gulf. (AFP/Getty Images)
U.S. Acting Secretary of Defense Patrick M. Shanahan hosts a multi-lateral meeting with Asian nations, at the IISS Shangri-La Dialogue 2019, Singapore, May 31, 2019. (Lisa Ferdinando)
US President Donald Trump gestures as he speaks to European Council President Donald Tusk upon his arrival at EU headquarters in Brussels, on May 25, 2017. (EMMANUEL DUNAND/Getty Images)