Russian armoured personnel carriers emerge from amphibious assault ships during the Navy Day parade in the Black Sea port of Sevastopol, Crimea July 26, 2020. REUTERS/Alexey Pavlishak

People in boats watch as a Russian armoured personnel carrier sails after emerging from an amphibious assault ship during the Navy Day parade in the Black Sea port of Sevastopol, Crimea July 26, 2020. REUTERS/Alexey Pavlishak

Russian armoured personnel carriers emerge from amphibious assault ships during the Navy Day parade in the Black Sea port of Sevastopol, Crimea July 26, 2020. REUTERS/Alexey Pavlishak

U.S. Navy helicopter and city firefighters continue fighting a fire on the amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, in San Diego, California, U.S. July 13, 2020. REUTERS/Mike Blake

A U.S. Navy helicopter continues fighting a fire on the amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, in San Diego, California, U.S. July 13, 2020. REUTERS/Mike Blake

U.S. Navy helicopter and city firefighters continue fighting a fire on the amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, in San Diego, California, U.S. July 13, 2020. REUTERS/Mike Blake

A U.S. Navy helicopter continues fighting a fire on the amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, in San Diego, California, U.S. July 13, 2020. REUTERS/Mike Blake

U.S. Navy helicopters continue fighting a fire on the amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, in San Diego, California, U.S. July 13, 2020. REUTERS/Mike Blake TPX IMAGES OF THE DAY

A U.S. Navy helicopter and city firefighters continue fighting a fire on the amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, in San Diego, California, U.S. July 13, 2020. REUTERS/Mike Blake

U.S. Navy helicopters and city firefighters continue fighting a fire on the amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, in San Diego, California, U.S. July 13, 2020. REUTERS/Mike Blake

U.S. Navy helicopters and city firefighters continue fighting a fire on the amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, in San Diego, California, U.S. July 13, 2020. REUTERS/Mike Blake

U.S. Navy helicopters and city firefighters continue fighting a fire on the amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, in San Diego, California, U.S. July 13, 2020. REUTERS/Mike Blake

U.S. Navy helicopters and city firefighters continue fighting a fire on the amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, in San Diego, California, U.S. July 13, 2020. REUTERS/Mike Blake

U.S. Navy helicopters and city firefighters continue fighting a fire on the amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, in San Diego, California, U.S. July 13, 2020. REUTERS/Mike Blake

U.S. Navy helicopters and city firefighters continue fighting a fire on the amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, in San Diego, California, U.S. July 13, 2020. REUTERS/Mike Blake

U.S. Navy helicopters and city firefighters continue fighting a fire on the amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, in San Diego, California, U.S. July 13, 2020. REUTERS/Mike Blake

U.S. Navy helicopters and city firefighters continue fighting a fire on the amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, in San Diego, California, U.S. July 13, 2020. REUTERS/Mike Blake

U.S. Navy helicopters and city firefighters continue fighting a fire on the amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, in San Diego, California, U.S. July 13, 2020. REUTERS/Mike Blake

Smoke rises from a fire onboard the U.S. Navy amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, California, U.S. July 12, 2020. REUTERS/Bing Guan TPX IMAGES OF THE DAY

Smoke rises from a fire onboard the U.S. Navy amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, California, U.S. July 12, 2020. REUTERS/Bing Guan

Firefighting boats spray saltwater onto the U.S. Navy amphibious assault ship USS Bonhomme Richard as smoke rises from a fire onboard the ship at Naval Base San Diego, California, U.S. July 12, 2020. REUTERS/Bing Guan

Smoke rises from a fire onboard the U.S. Navy amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, California, U.S. July 12, 2020. REUTERS/Bing Guan

Smoke rises from a fire onboard the U.S. Navy amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, California, U.S. July 12, 2020. REUTERS/Bing Guan

Shipyards are seen amid haze as smoke rises from a fire onboard the U.S. Navy amphibious assault ship USS Bonhomme Richard (not pictured) at Naval Base San Diego, California, U.S. July 12, 2020. REUTERS/Bing Guan

Firefighting boats spray water onto the U.S. Navy amphibious assault ship USS Bonhomme Richard as smoke rises from a fire onboard the ship at Naval Base San Diego, as seen from Coronado, California, U.S. July 12, 2020. REUTERS/Bing Guan

People dine at the Clubhouse restaurant on the Coronado Golf Course, as firefighting boats spray water onto the U.S. Navy amphibious assault ship USS Bonhomme Richard as smoke rises from a fire onboard the ship at Naval Base San Diego, California, U.S. July 12, 2020. REUTERS/Bing Guan

Firefighting boats spray water onto the U.S. Navy amphibious assault ship USS Bonhomme Richard as smoke rises from a fire onboard the ship at Naval Base San Diego, as seen from Coronado, California, U.S. July 12, 2020. REUTERS/Bing Guan

Firefighting boats spray water onto the U.S. Navy amphibious assault ship USS Bonhomme Richard as smoke rises from a fire onboard the ship at Naval Base San Diego, as seen from Coronado, California, U.S. July 12, 2020. REUTERS/Bing Guan

Firefighting boats spray water onto the U.S. Navy amphibious assault ship USS Bonhomme Richard as smoke rises from a fire onboard the ship at Naval Base San Diego, as seen from Coronado, California, U.S. July 12, 2020. REUTERS/Bing Guan

Firefighting boats spray water onto the U.S. Navy amphibious assault ship USS Bonhomme Richard as smoke rises from a fire onboard the ship at Naval Base San Diego, as seen from Coronado, California, U.S. July 12, 2020. REUTERS/Bing Guan

Firefighting boats spray water onto the U.S. Navy amphibious assault ship USS Bonhomme Richard as smoke rises from a fire onboard the ship at Naval Base San Diego, as seen from Coronado, California, U.S. July 12, 2020. REUTERS/Bing Guan

A recreational boat pulls a person on an inner tube on San Diego Bay as firefighting boats spray water onto the U.S. Navy amphibious assault ship USS Bonhomme Richard as smoke rises from a fire onboard the ship at Naval Base San Diego, as seen from Coronado, California, U.S. July 12, 2020. REUTERS/Bing Guan

Firefighting boats spray water onto the U.S. Navy amphibious assault ship USS Bonhomme Richard as smoke rises from a fire onboard the ship at Naval Base San Diego, as seen from Coronado, California, U.S. July 12, 2020. REUTERS/Bing Guan

People pose for a picture in front of the San Diego skyline as smoke rises from a fire on board the U.S. Navy amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, as seen from Coronado, California, U.S. July 12, 2020. REUTERS/Bing Guan TPX IMAGES OF THE DAY

A cyclist watches as smoke rises from a fire on board the U.S. Navy amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, California, U.S. July 12, 2020. Photo taken from Coronado. REUTERS/Bing Guan TPX IMAGES OF THE DAY

Smoke rises from a fire on board the U.S. Navy amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, as seen from Coronado, California, U.S. July 12, 2020. REUTERS/Bing Guan

Firefighting boats spray water onto the U.S. Navy amphibious assault ship USS Bonhomme Richard as smoke rises from a fire onboard the ship at Naval Base San Diego, as seen from Coronado, California, U.S. July 12, 2020. REUTERS/Bing Guan TPX IMAGES OF THE DAY

Smoke rises from a fire on board the U.S. Navy amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, California, U.S. July 12, 2020. Photo taken from the San-Diego Coronado Bridge. REUTERS/Bing Guan

A Southwest Airlines plane flies over downtown San Diego as smoke rises from a fire on board the U.S. Navy amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, as seen from Coronado, California, U.S. July 12, 2020. REUTERS/Bing Guan

Smoke rises from a fire on board the U.S. Navy amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, as seen from Coronado, California, U.S. July 12, 2020. REUTERS/Bing Guan

Smoke rises from a fire on board the U.S. Navy amphibious assault ship USS Bonhomme Richard at Naval Base San Diego, as seen from Coronado, California, U.S. July 12, 2020. REUTERS/Bing Guan

Smoke rises from a fire on board the U.S. Navy amphibious assault ship USS Bonhomme Richard at Naval Base San Diego California, U.S. Photo taken from the San-Diego Coronado Bridge. July 12, 2020. REUTERS/Bing Guan

Russian armoured vehicles sail after submerging from an amphibious assault ship during the Navy Day parade in the Black Sea port of Sevastopol, Crimea July 28, 2019. REUTERS/Alexey Pavlishak

Russian armoured personnel carriers sail after submerging from an amphibious assault ship during a rehearsal for the Navy Day parade in the Black Sea port of Sevastopol, Crimea July 26, 2019. REUTERS/Alexey Pavlishak

Russian armoured personnel carriers submerge from an amphibious assault ship during a rehearsal for the Navy Day parade in the Black Sea port of Sevastopol, Crimea July 26, 2019. REUTERS/Alexey Pavlishak

An MH-60S Sea Hawk is fastened down after it was landed on the flight deck of the U.S. Navy amphibious assault ship USS Boxer, near a Light Marine Air Defense Integrated System (LMADIS) counter-unmanned aircraft system mounted on a vehicle parked at the bow, in the Arabian Sea off Oman July 16, 2019. Picture taken July 16, 2019. REUTERS/Ahmed Jadallah

REFILE- REMOVING AND ADDING INFORMATION An MH-60S Sea Hawk is seen after it was landed on the flight deck of the U.S. Navy amphibious assault ship USS Boxer, near a Light Marine Air Defense Integrated System (LMADIS) counter-unmanned aircraft system mounted on a vehicle parked at the bow, in the Arabian Sea off Oman July 16, 2019. Picture taken July 16, 2019. REUTERS/Ahmed Jadallah

Spanish Army servicemen walk after amphibious landing from assault ship-aircraft carrier LHD Juan Carlos I during Baltops 2019 NATO military exercise in Lilaste, Latvia June 12, 2019. REUTERS/Ints Kalnins

Spanish Army servicemen talk after amphibious landing from assault ship-aircraft carrier LHD Juan Carlos I during Baltops 2019 NATO military exercise in Lilaste, Latvia June 12, 2019. REUTERS/Ints Kalnins

Spanish Army servicemen talk after amphibious landing from assault ship-aircraft carrier LHD Juan Carlos I during Baltops 2019 NATO military exercise in Lilaste, Latvia June 12, 2019. REUTERS/Ints Kalnins

Spanish Army servicemen walk after amphibious landing from assault ship-aircraft carrier LHD Juan Carlos I during Baltops 2019 NATO military exercise in Lilaste, Latvia June 12, 2019. REUTERS/Ints Kalnins

Spanish Army servicemen walk after amphibious landing from assault ship-aircraft carrier LHD Juan Carlos I during Baltops 2019 NATO military exercise in Lilaste, Latvia June 12, 2019. REUTERS/Ints Kalnins

Spanish Army servicemen talk after amphibious landing from assault ship-aircraft carrier LHD Juan Carlos I during Baltops 2019 NATO military exercise in Lilaste, Latvia June 12, 2019. REUTERS/Ints Kalnins

The Nimitz-class aircraft carrier USS Abraham Lincoln (CVN 72) and the Wasp-class Amphibious Assault Ship USS Kearsarge (LHD 3) sail alongside, as the Abraham Lincoln Carrier Strike Group (ABECSG) and Kearsarge Amphibious Ready Group (KSGARG) conduct joint operations, in the U.S. 5th Fleet area of operations in the Arabian Sea, May 17, 2019. Picture taken May 17, 2019. Mass Communication Specialist 1st Class Brian M. Wilbur/U.S. Navy/Handout via REUTERS ATTENTION EDITORS - THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY.

An amphibious assault ship and armored personnel carriers are seen during military exercises, which are staged by the Baltic Fleet forces of the Russian Navy to train amphibious assault, at Khmelevka firing ground on the Baltic Sea coast in Kaliningrad Region, Russia April 4, 2019. REUTERS/Vitaly Nevar

BTR-82A armored personnel carriers submerge from an amphibious assault ship during military exercises, which are staged by the Baltic Fleet forces of the Russian Navy to train amphibious assault, at Khmelevka firing ground on the Baltic Sea coast in Kaliningrad Region, Russia April 4, 2019. REUTERS/Vitaly Nevar

An amphibious assault ship and armored personnel carriers are seen during military exercises, which are staged by the Baltic Fleet forces of the Russian Navy to train amphibious assault, at Khmelevka firing ground on the Baltic Sea coast in Kaliningrad Region, Russia April 4, 2019. REUTERS/Vitaly Nevar

An amphibious assault ship, armored personnel carriers and helicopters are seen during military exercises, which are staged by the Baltic Fleet forces of the Russian Navy to train amphibious assault, at Khmelevka firing ground on the Baltic Sea coast in Kaliningrad Region, Russia April 4, 2019. REUTERS/Vitaly Nevar

A BTR-82A armored personnel carrier submerges from an amphibious assault ship during military exercises, which are staged by the Baltic Fleet forces of the Russian Navy to train amphibious assault, at Khmelevka firing ground on the Baltic Sea coast in Kaliningrad Region, Russia April 4, 2019. REUTERS/Vitaly Nevar