In this handout photo provided by the U.S. Department of Defense, imagery taken from a U.S. Navy MH-60R helicopter shows the Islamic Revolutionary Guard Corps Navy after removing an unexploded limpet mine from the M/T Kokuka Courageous. The Motor Tanker (M/T) Kokuka Courageous sustained damage from a limpet mine attack while operating in the Gulf of Oman, on June 13th. Limpet mines are attached to a vessel via magnets and/or nails and detonated by a timer. Following the attack, sailors from the Kokuka Couragous discovered a second, unexploded, limpet mine on their vessel and abandoned ship. (Photo by U.S. Department of Defense via Getty Images)
A Turkish Army Eurocopter AS532 Cougar helicopter takes part in a military rescue mission exercise in the northern part of the Mediterranean island of Cyprus in the self-proclaimed Turkish Republic of Northern Cyprus, on June 11, 2019. (ADEM ALTAN/AFP/Getty Images)
Norwegian and Dutch army units take part in the NATO Noble Jump military exercises during a live fire demonstration on June 12, 2019 in Zagan, Poland. The exercises include VJTF, or Very High Readiness Joint Task Force, units, as well as the I German-Netherlands Corps, with soldiers from Germany, the Netherlands, Norway and Poland taking part. (Sean Gallup/Getty Images)
Visitors attend the unveiling ceremony of the full-scale jet fighter model of the Systeme de Combat Aerien Futur (SCAF), the French-German-Spanish new generation Future Combat Air System (FCAS), during the 53rd International Paris Air Show at Le Bourget Airport near Paris, on June 17, 2019. (ERIC PIERMONT/AFP/Getty Images)
A paratrooper of French army 4th Special Forces Helicopter Regiment (4th RHFS) jumps from an Airbus 400M aircarft on June 13, 2019 in Pau, southwestern France. (IROZ GAIZKA/AFP/Getty Images)
A French Airman showcases a Dassault- Rafale Marine to an international audience at the 53rd Paris Air Show, France, June 18, 2019. . (Sgt. Apolonia L. Gaspar/U.S. Army)
A Rafale fighter performs its flying display at the International Paris Air Show on June 17, 2019 at Le Bourget Airport, near Paris. (ERIC PIERMONT/AFP/Getty Images)
Indonesian soldiers from the Raider 112 infantry battalion stand with light and heavy machine guns during training at their base in Banda Aceh on June 11, 2019. (PCHAIDEER MAHYUDDIN/AFP/Getty Images)
A Macedonian army helicopter Mi-24 fires during the 'Decisive Strike' exercise at the Training Support Centre (TSC) Krivolak, near Skopje, on June 17, 2019. -(ROBERT ATANASOVSKI/AFP/Getty Images)
A member of French army 4th Special Forces Helicopter Regiment (4th RHFS) holds a German made assault rifle HK416 which will replace the French Famas assault rifle, (IROZ GAIZKA/AFP/Getty Images)