PARIS (AP) — From the first sketchy German radio broadcast to the distribution of images filmed in color, it has taken decades for the full story of the D-Day invasion to come out.

As world leaders and veterans prepare to mark the 70th anniversary of the invasion this week, multiple Twitter hashtags are following the ceremonies minute by minute. At the time, the reporting, filming and taking of photos was neither easy nor straightforward.

Recommended Stories

The fallen on foreign shores

[WATCH] Ronald Reagan’s 1984 speech about D-Day from Point-du-Hoc

Unearthed: Hitler’s defiant pledge to stay in Berlin to the death