The problem is the media which in every year with a 4 in the end publish articles related to the X0 years of the normandy landing as the "most important event of the WWII". It is OK to show big articles about the normandy landing. It is OK to put more emphasis in the normandy landing than in the battles in the Eastern front because of the nationality of the newspaper/magazine. But it is not OK to say that it was "the most important event of the WWII" because it was not.
So could you show us some of these articles that state what you describe? Also, I assume you're talking about the issue as an American. It might well be possible that newspapers imply that something has been an important issue
for the Americans in WWII, which could perfectly make sense.