The Normandy Landings

 https://en.wikipedia.org/wiki/Normandy_landings 

https://www.history.co.uk/article/the-largest-seaborne-invasion-in-history-the-story-of-d-day 

https://www.eisenhowerlibrary.gov/research/online-documents/world-war-ii-d-day-invasion-normandy 

https://boardgamegeek.com/boardgame/268864/undaunted-normandy 

https://boardgamegeek.com/boardgame/150005/lock-n-load-tactical-heroes-of-normandy 

https://www.reddit.com/r/computerwargames/ 

https://en.wikipedia.org/wiki/Theatre_of_War_(video_game)