This year marks the 80th anniversary of the D-Day landings in Normandy on June 6th 1944.
There are many events and commemorations around the UK and Europe.
Those in the UK include:
UK National Event : Portsmouth 5th June
D Day 80 Remembrance Service at the National Memorial Arboretum Staffordshire
https://dday80.campaign.gov.uk/home-page/attend-an-event/events-in-the-uk/
There are also hundreds of beacons that will be lit around the UK