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:

Merry Christmas and go look at the Constitution, you do called President. Freedom of Speech.
Let’s over helm the white house with merry Christmas wishes
I Agree
Christians are to obey the laws of God, before the laws of man.
Do a fact check and read further than your FB friends opinions. The President has NOT banned the word Christmas.
I believe he should be brought up on treason charges
When I think that dimwit can not be any dumber – he will prove me wrong again ….
I guess no Christmas tree in the White house this year … goatmolesters could be offended…
Our congress does not have the back bone to put a stop to this and Americans put them in office in trust they take are of American not Muslim we the people need to stand up to our government someone please step up and help americans someone that has the arts to have him impeached and I hope everyone backs it
I really doubt that this is true.
If it is then Obama has really lost his mind.