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:

Obama can jump in a like if i was still in i would say merry christmass is he going to gag the murdering rapping muslins too
Do you need any more proof that he is not a Christian, but a muslim?
What next get rid of this man he is ludicrous beyond do belief and it has nothing,nothing to do with race in my book he just has such questionable lack of lyalty and welfare of this great nation. Praying for a Man of God next .Please your vote does count so get out and vote!
shame on you mr oboma go to hell
Somebody take away this guy’s pens.
Why don’t we all send Christmas cards to the president?
I put in my 2 cents by sending a email to the white house. . Wonder if I’ll get in trouble for my right of free speech. I’m sure I’ll hear from someone. .lol
That is an insult to the monkey.
Merry CHRISTmas Mr. President
Lets tell obummer he is not fooling no one take his Muslim ideas and go to hell God will get him