There are two good online interactives related to D-Day that I’ll be adding to my website:
One is titled The Battle of Pointe du Hoc. It’s about one particular battle that took place during the invasion of Normandy, and is particularly accessible to English Language Learners because it provides audio support for the text.
The other provides an overview of the entire invasion. It’s really quite impressive, and is accessible to ELL’s. It’s just not quite as accessible as the first one because it doesn’t provide audio support for the text.