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:

I think it’s time BHO get the proper one fingered salute, while riding out of town on a rail, along with his bleeding heart liberals on board. Today would not be soon enough.
Dear Whacks, more facts: http://www.snopes.com/christmas-card-ban-military/
Unbelievable!
He’s winning so far. how many of those who think he should be gone have called, emailed or written their congressperson to ask for impeachment? If enough did he would be gone.
Merry Christmas in Jesus name Amen
First amandment OBAMA unless you executive ordered that gone too!
Say it anyway ,he breaks our laws all the time .
Illegal order violation of two parts of the 1st amendment. Freedom of speech and freedom of religion.Remember all order no matter what have to be legal orders. If they are not legal you are obligated not to follow them.
Shoot him
Obama it’s not your job to tell us what to say or think. If you would do your job you wouldn’t have time for your tom foolery. I’ll be so glad when you are gone. You are one stupid leader. Take that back you’re no leader. Merry Christmas to all of our troops.