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:

Christmas, Christmas, Christmas, Christmas, Christmas, Christmas…
Screw you Barack…and BTW- Merry Christmas!
Get this muslim out of our WH
I have to ask GOD to forgive me for the thoughts that went through my head when I read this… but bHUSSEINo is a muzzie “N” … (and that is very mild but it is all I can say!)
Obama is a Muslim. Enough said.
Troops, say instead “HAPPY BIRTHDAY JESUS!”
Putting gags on Americans will never work, ! We have freedom of speech from the first day our country was founded !! No dictator will ever change that !
We wish you a Merry CHRISTMAS. We wish you a Merry CHRISTMAS. WE WISH YOU A MERRY CHRISTMAS!!!!!!!!! CHRISTMAS CHRISTMAS CHRISTMAS
Assh#%^
Freedom of speech? Obama sure practices this……