Defence Secretary Gavin Williamson said: “75 years ago, troops from 14 allied countries united together, many on the south coast of Britain, before launching the historic operation to liberate Occupied Europe.
"Britain must always keep the legacy of that special generation alive.
"I urge people to join our Armed Forces in showing that all of us, young and old, will never forget the price they paid for the freedom and peace we now enjoy.”
On 5 June, D-Day veterans, VIPs and serving personnel will attend a national commemorative event on Southsea Common in Portsmouth where much of the invasion sailed from.
A total of 26 aircraft from the RAF will fly over the south-coast city where 300 veterans will embark on their journey to Normandy on board the Royal British Legion's specially chartered ship.
HMS St Albans, a Type-23 Royal Navy frigate, will escort the ship to Normandy along with four smaller Royal Navy vessels.