D-Day Veterans from Blind Veterans UK Bob Jones, Nev Lees, John Connelly and Arthur Barnes pose for a picture aboard the HMS Belfast, a British battleship that survived World War Two, during the 75th anniversary of D-Day, in London, Britain June 6, 2019. REUTERS/Simon Dawson

Log book of the HMS Belfast, a British battleship that survived World War Two, is pictured during the 75th anniversary of D-Day, in London, Britain June 6, 2019. REUTERS/Simon Dawson

D-Day Veterans from Blind Veterans UK Bob Jones, Nev Lees, John Connelly and Arthur Barnes pose for a picture aboard the HMS Belfast, a British battleship that survived World War Two, during the 75th anniversary of D-Day, in London, Britain June 6, 2019. REUTERS/Simon Dawson

Log book of the HMS Belfast, a British battleship that survived World War Two, shows the entries done on June 6, 1944, during the 75th anniversary of D-Day, in London, Britain June 6, 2019. REUTERS/Simon Dawson

D-Day Veterans from Blind Veterans UK Bob Jones, Nev Lees, John Connelly and Arthur Barnes pose for a picture aboard the HMS Belfast, a British battleship that survived World War Two, during the 75th anniversary of D-Day, in London, Britain June 6, 2019. REUTERS/Simon Dawson

A British battleship that survived World War Two, the HMS Belfast, recreates the moment the first guns were fired in Normandy on June 6, 1944, marking the 75th anniversary of D-Day, in London, Britain June 6, 2019. REUTERS/Simon Dawson

Alexzandra Hildred, Head of Research at the Mary Rose Trust, examines a skull recovered from the site where the battleship sank in 1545, in Portsmouth, Britain March 15, 2019. Research has revealed the crew of King Henry VIII's flagship was more diverse than historians had previously thought. Picture taken March 15, 2019. REUTERS/Stuart McDill

Alexzandra Hildred, Head of Research at the Mary Rose Trust, examines a skull recovered from the site where the battleship sank in 1545, in Portsmouth, Britain March 15, 2019. Research has revealed the crew of King Henry VIII's flagship was more diverse than historians had previously thought. Picture taken March 15, 2019. REUTERS/Stuart McDill

Storm clouds pass over the decommissioned battleship USS North Carolina as an amateur photographer takes pictures on the banks of the Cape Fear River before the arrival of Hurricane Florence, in Wilmington, North Carolina, U.S., September 13, 2018. REUTERS/Jonathan Drake

Britain's Charles, Prince of Wales walks on the deck of World War I historical battleship "Georgios Averof" in Athens, Greece, May 10, 2018. Giorgos Kontarinis/Pool via REUTERS

Britain's Charles, Prince of Wales leaves the World War I historical battleship "Georgios Averof" in Athens, Greece, May 10, 2018. Giorgos Kontarinis/Pool via REUTERS

The frigate "Blagodat" (Grace), a historic reconstruction of the late 18th century three-deck battleship, which is now used as restaurant, is moored near the Peter and Paul Fortress on the banks of the Neva River in St. Petersburg, Russia, September 28, 2017. Picture taken September 28, 2017. REUTERS/Grigory Dukor

The frigate "Blagodat" (Grace), a historic reconstruction of the late 18th century three-deck battleship, which is now used as restaurant, is moored near the Peter and Paul Fortress on the banks of the Neva River in St. Petersburg, Russia, September 28, 2017. Picture taken September 28, 2017. REUTERS/Grigory Dukor

The frigate "Blagodat" (Grace), a historic reconstruction of the late 18th century three-deck battleship, which is now used as restaurant, is moored near the Peter and Paul Fortress on the banks of the Neva River in St. Petersburg, Russia, September 28, 2017. Picture taken September 28, 2017. REUTERS/Grigory Dukor

The USS Arizona Memorial and USS Battleship Missouri Memorial can be seen from the air in Pearl Harbor in Honolulu, Hawaii December 5, 2016. REUTERS/Hugh Gentry

The USS Arizona Memorial and USS Battleship Missouri Memorial can be seen from the air in Pearl Harbor in Honolulu, Hawaii December 5, 2016. REUTERS/Hugh Gentry

The USS Arizona Memorial and the Battleship USS Missouri can be seen at the World War II Valor in the Pacific National Monument in Honolulu, Hawaii December 6, 2015. REUTERS/Hugh Gentry

A supporters of U.S. Republican presidential candidate Donald Trump cheers during a campaign rally at the USS Wisconsin battleship in Norfolk, Virginia October 31, 2015. REUTERS/Joshua Roberts

U.S. Republican presidential candidate Donald Trump speaks during a campaign rally at the USS Wisconsin battleship in Norfolk, Virginia October 31, 2015. REUTERS/Joshua Roberts

Julie Gavin (L) and Corey Carter, suppoters of U.S. Republican presidential candidate Donald Trump, recite the Pledge of Allegiance before a campaign rally at the USS Wisconsin battleship in Norfolk, Virginia October 31, 2015. REUTERS/Joshua Roberts

U.S. Republican presidential candidate Donald Trump speaks during a campaign rally at the USS Wisconsin battleship in Norfolk, Virginia October 31, 2015. REUTERS/Joshua Roberts

U.S. Republican presidential candidate Donald Trump speaks during a campaign rally at the USS Wisconsin battleship in Norfolk, Virginia October 31, 2015. REUTERS/Joshua Roberts

U.S. Republican presidential candidate Donald Trump speaks during a campaign rally at the USS Wisconsin battleship in Norfolk, Virginia October 31, 2015. REUTERS/Joshua Roberts

U.S. Republican presidential candidate Donald Trump speaks during a campaign rally at the USS Wisconsin battleship in Norfolk, Virginia October 31, 2015. REUTERS/Joshua Roberts

U.S. Republican presidential candidate Donald Trump speaks during a campaign rally at the USS Wisconsin battleship in Norfolk, Virginia October 31, 2015. REUTERS/Joshua Roberts

U.S. Republican presidential candidate Donald Trump speaks during a campaign rally at the USS Wisconsin battleship in Norfolk, Virginia October 31, 2015. REUTERS/Joshua Roberts

U.S. Republican presidential candidate Donald Trump signs autographs for supporters during a campaign rally at the USS Wisconsin battleship in Norfolk, Virginia October 31, 2015. REUTERS/Joshua Roberts

U.S. Republican presidential candidate Donald Trump speaks during a campaign rally at the USS Wisconsin battleship in Norfolk, Virginia October 31, 2015. REUTERS/Joshua Roberts

U.S. Republican presidential candidate Donald Trump speaks during a campaign rally at the USS Wisconsin battleship in Norfolk, Virginia October 31, 2015. REUTERS/Joshua Roberts

U.S. Republican presidential candidate Donald Trump speaks during a campaign rally at the USS Wisconsin battleship in Norfolk, Virginia October 31, 2015. REUTERS/Joshua Roberts

U.S. Republican presidential candidate Donald Trump waves to supporters during a campaign rally at the USS Wisconsin battleship in Norfolk, Virginia October 31, 2015. REUTERS/Joshua Roberts

U.S. Republican presidential candidate Donald Trump poses for a picture with a supporter during a campaign rally at the USS Wisconsin battleship in Norfolk, Virginia October 31, 2015. REUTERS/Joshua Roberts

U.S. Republican presidential candidate Donald Trump (C) greets supporters during a campaign rally at the USS Wisconsin battleship in Norfolk, Virginia October 31, 2015. REUTERS/Joshua Roberts

U.S. Republican presidential candidate Donald Trump (L) shakes hands with a supporter during a campaign rally at the USS Wisconsin battleship in Norfolk, Virginia October 31, 2015. REUTERS/Joshua Roberts

U.S. Republican presidential candidate Donald Trump (C) greets supporters during a campaign rally at the USS Wisconsin battleship in Norfolk, Virginia October 31, 2015. REUTERS/Joshua Roberts

U.S. Republican presidential candidate Donald Trump greets supporters during a campaign rally at the USS Wisconsin battleship in Norfolk, Virginia October 31, 2015. REUTERS/Joshua Roberts

Republican presidential candidate Donald Trump shakes hands with supporters during a campaign rally at the USS Wisconsin battleship in Norfolk, Virginia October 31, 2015. REUTERS/Joshua Roberts

U.S. Republican presidential candidate Donald Trump walks past the guns of the USS Iowa after speaking on the battleship in San Pedro, Los Angeles, California, United States September 15, 2015. REUTERS/Lucy Nicholson

U.S. Republican presidential candidate Donald Trump walks past the guns of the USS Iowa after speaking on the battleship in San Pedro, Los Angeles, California, United States September 15, 2015. REUTERS/Lucy Nicholson

U.S. Republican presidential candidate Donald Trump walks past the guns of the USS Iowa after speaking on the battleship in San Pedro, Los Angeles, California, United States September 15, 2015. REUTERS/Lucy Nicholson

The USS Battleship Memorial can be seen from the dock on Ford Island during the ceremony celebrating the 70th anniversary of the end of World War II in the Pacific aboard the USS Battleship Missouri Memorial at Pearl Harbor in Honolulu, Hawaii, September 2, 2015. REUTERS/Hugh Gentry

Flags fly above the deck guns on board the USS Battleship Memorial during the ceremony celebrating the 70th anniversary of the end of World War II in the Pacific aboard the USS Battleship Missouri Memorial at Pearl Harbor in Honolulu, Hawaii, September 2, 2015. REUTERS/Hugh Gentry

The U.S. Navy Rifle team stands at attention before the ceremony celebrating the 70th anniversary of the end of World War II in the Pacific aboard the USS Battleship Missouri Memorial at Pearl Harbor in Honolulu, Hawaii, September 2, 2015. REUTERS/Hugh Gentry

USS Missouri crew mate Ray Morse gets applause from the crowd for wearing his original uniform from when he witnessed the signing of the Peace Treaty with Japan ending World War Two during the ceremony celebrating the 70th anniversary of the end of World War II in the Pacific aboard the USS Battleship Missouri Memorial at Pearl Harbor in Honolulu, Hawaii, September 2, 2015. REUTERS/Hugh Gentry

World War Two veteran Edwin Carter salutes during the ceremony celebrating the 70th anniversary of the end of World War II in the Pacific aboard the USS Battleship Missouri Memorial at Pearl Harbor in Honolulu, Hawaii, September 2, 2015. REUTERS/Hugh Gentry

The pens used for signing of the Peace Treaty with Japan are on display during the ceremony celebrating the 70th anniversary of the end of World War II in the Pacific aboard the USS Battleship Missouri Memorial at Pearl Harbor in Honolulu, Hawaii, September 2, 2015. REUTERS/Hugh Gentry

USS Missouri veteran Dan Fosberg, celebrating his 89th birthday, looks at the U.S. flag he received from the USS Battleship Missouri Memorial, and who was on board during the signing of the Peace Treaty with Japan, during the ceremony celebrating the 70th anniversary of the end of World War II in the Pacific aboard the USS Battleship Missouri Memorial at Pearl Harbor in Honolulu, Hawaii, September 2, 2015. REUTERS/Hugh Gentry

USS Missouri crew mates Ray Morse (L) and Dan Fosberg, who received the U.S. flag from the USS Missouri, and who were on board during the signing of the Peace Treaty with Japan, share a laugh after the ceremony celebrating the 70th anniversary of the end of World War II in the Pacific aboard the USS Battleship Missouri Memorial at Pearl Harbor in Honolulu, Hawaii, Septempber 2, 2015. REUTERS/Hugh Gentry

The U.S. Military Color Guard puts their flags away during the ceremony celebrating the 70th anniversary of the end of World War II in the Pacific aboard the USS Battleship Missouri Memorial at Pearl Harbor in Honolulu, Hawaii, September 2, 2015. REUTERS/Hugh Gentry

The U.S. Navy Rifle team stands at attention before the ceremony celebrating the 70th anniversary of the end of World War II in the Pacific aboard the USS Battleship Missouri Memorial at Pearl Harbor in Honolulu, Hawaii, September 2, 2015. REUTERS/Hugh Gentry

Fireworks explode over Pearl Harbor near the USS Arizona Memorial and the USS Battleship Missouri Memorial during the "70 Years of Peace" fireworks display by the city of Nagaoka in Japan, to commemorate the end of World War Two in the Pacific, in Honolulu, Hawaii August 15, 2015. REUTERS/Hugh Gentry

Fireworks explode over Pearl Harbor near the USS Arizona Memorial and the USS Battleship Missouri Memorial during the "70 Years of Peace" fireworks display by the city of Nagaoka in Japan, to commemorate the end of World War Two in the Pacific, in Honolulu, Hawaii August 15, 2015. REUTERS/Hugh Gentry

A giant inflatable rubber duck installation by Dutch artist Florentijn Hofman floats past the Battleship Iowa through the Port of Los Angeles as part of the Tall Ships Festival, in San Pedro, California August 20, 2014. The creation, which is five stories tall and five stories wide, has been seen floating in various cities around the world since 2007. REUTERS/Lucy Nicholson (UNITED STATES - Tags: MILITARY MARITIME SOCIETY)

A DC3 Dakota flies over Britain's Prime Minister David Cameron, London's Mayor Boris Johnson and veterans during an event on the deck of battleship HMS Belfast in central London, May 20, 2014. Cameron officially started the 70th anniversary commemorations of the 1944 D-Day landings at the ceremony. REUTERS/Andrew Winning (BRITAIN)

London's Mayor Boris Johnson speaks to veterans during an event on the deck of battleship HMS Belfast in central London, May 20, 2014. Britain's Prime Minister David Cameron officially started the 70th anniversary commemorations of the 1944 D-Day landings at the ceremony. REUTERS/Andrew Winning (BRITAIN - Tags: POLITICS MILITARY)

Britain's Prime Minister David Cameron speaks to an audience including D-Day veterans at an event on the deck of battleship HMS Belfast in central London, May 20, 2014. Cameron officially started the 70th anniversary commemorations of the 1944 D-Day landings at the ceremony. REUTERS/Andrew Winning (BRITAIN - Tags: POLITICS MILITARY)

Britain's Prime Minister David Cameron points as he chats to D-Day veteran Kenneth Sturdy during an event on the deck of battleship HMS Belfast in central London, May 20, 2014. Cameron officially started the 70th anniversary commemorations of the 1944 D-Day landings at the ceremony. REUTERS/Andrew Winning (BRITAIN - Tags: POLITICS MILITARY)

Britain's Prime Minister David Cameron points as he chats to D-Day veteran Kenneth Sturdy during an event on the deck of battleship HMS Belfast in central London, May 20, 2014. Cameron officially started the 70th anniversary commemorations of the 1944 D-Day landings at the ceremony. REUTERS/Andrew Winning (BRITAIN - Tags: POLITICS MILITARY)

Britain's Prime Minister David Cameron speaks to an audience including D-Day veterans at an event on the deck of battleship HMS Belfast in central London, May 20, 2014. Cameron officially started the 70th anniversary commemorations of the 1944 D-Day landings at the ceremony. REUTERS/Andrew Winning (BRITAIN - Tags: POLITICS MILITARY)

London's Mayor Boris Johnson adjusts his tie as Chelsea Pensioner Fred Walker watches during an event on the deck of battleship HMS Belfast in central London, May 20, 2014. Britain's Prime Minister David Cameron officially started the 70th anniversary commemorations of the 1944 D-Day landings at the ceremony. REUTERS/Andrew Winning (BRITAIN - Tags: POLITICS MILITARY)