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:

Little$#%&!@*
Hell is waiting .
Merry Christmas Obummer.
Merry Christmas!
Merry Christmas Mr. O. Remember the first amendment. I would think you would know. Our military personnel and their families can believe what ever is in their hearts. You cannot take that away. No one can. Can we take your hurtful heart away from you. No only you can.
WE ARE NOT A CHRISTIAN NATION YOU KNUCKLE-DRAGGER.
That is not a lawful order. The military will not abide by Obama’s insane order, nor would I.
Who is he to tell us what we can say? This is America!!! Merry Chrstmas you piece of trash!!! Get out of MY house!!!!
Don’t forget, Muslims don’t celebrate Christmas. They don’t give any excuses for Christians to celebrate.
Merry Xmas to all our boys stay safe Obama is insane