The Obama administration has directed the military to not allow personnel to say “Christmas”, in spite of the holiday’s status as a federally-recognized holiday.
The reason given by armed forces officials is that not everyone celebrates Christmas and that out of respect for them, military members should refer to Christmas celebrations simply as “holiday”-themed festivities.
This prohibition comes in the context of a wider push for political correctness in society in general and the military in particular, as evidenced by the recent reprimanding of Navy Chaplain Wes Modder for simply discussing religion, as chaplains are wont to do, with military personnel.
See how servicemen have reacted to not being allowed to say Christmas at the link below:

The end of Obama’s term can’t come soon enough. The worst of the worst!!!
MERRY CHRISTMAS to all our military, and their families!!! (y)
Merry Christmas you disgusting excuse for a human being!!!! Remember your duty to ignore an unlawful order!
The Devil’s advocate!
Go to hell
Lol… Another of ovomits great an wonderful laws he penned in himself… I jus wish either he would resign… Or die somehow… Cuz everyone hates him… Nobody wants him… Hes gotta be stopped somehow… Hes jus gotta… Hes ruined everything about America i loved… An he does more ruining every day… Smh… Fk you ovomit…. Go eat a goat$#%&!@*you muzzie pos!!!
go suck a kenyan$#%&!@*obama
We don’t follow any such thing. We the American people say merry Christmas and that will not change with any law.
That’s BS
I will never stop saying Christmas he can kiss where the sun dont shine