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:

Ya ok
He can order all he wants, but unless Congress makes it a law, it’s garbage.
Merry Christmas Obama
He can’t tell anybody what to say. We have a first amendment
What
Who does he think he is???? He is “not” God nor is he King.This is OUR country not yours,you are not even America citizen so how do you get to tell us anything? Go to hell and take the rest of the muslims with you.
Merry Christmas
to a fool.
IF this were true, why is it only being mentioned on this obscure website?
If this is true. He needs to be forcibly removed
Time for a military coup.