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:

Yet another illegal act by the dictator
SAY IT ANYWAY!! Obama is taking our rights away from us!! Just say no! JESUS CHRIST IS LORD!!
bs he needs to go
Our servicemen should be free to call it what they want. To hell with offending someone. They need to grow up.
obama sucks purple puppy p**s Merry Christmas
MERRY CHRISTMAS. Anyone who doesn’t like it, GO STRAIGHT TO HELL!
He is sooooooooooooooooooo stupid
Screw obama
He is so quick to recognize and celebrate Muslim celebrations but turns up his nose at Christian values and celebrations. A soldier away from home who cannot say Christmas makes Obama a total jerk. He does not get to decide that and anyone who listens to this garbage has a screw loose.
What about freedom of speech?