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:

why does he have to be such an a–
Merry Christmas america
MERRY CHRISTMAS!!!!!!!!!!!!! 😛
hey my democrate friends..ARE YOU HAPPY AND PROUD OF THE DAMAGE YOU ALL HAVE DONE TO YOUR COUNTRY and the babies you have killed for the past 7years…Gof forgive you!
get rid of the head of isis now we are tired of your garbage obumma.
Scrooge! Merry Christmas to you and everyone. God bless our troops!♡
By the way Happy Thanksgiving Merry Christmas and Happy New Year to all true Americans and Military Personal fighting to save lives.
You never know what’s true and what is not. I would hope the government has more to take care of then if I say Merry Christmas or not.
Merry Christmas Praise the name of Jesus my Savior.
CHRISTMAS CHRISTMAS CHRISTMAS CHRISTMAS CHRISTMAS bite me