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:

Wanna bet?!?!?!?!?! / MERRY CHRISTMAS TO ALL OUR TROOPS NO MATTER WHERE THEY ARE!!!!!!
Christmas. Christmas. Christmas. Christmas. Christmas. Christmas.
I have an executive order on behalf of the American people: “FIRE, ARREST, PROSECUTE and IMPRIOSN OBAMA and ANYONE who stands with him!:
Merry Christmas
Yes they csan per the constitution’s FREE SPEECH
Congress u p.o.s
Keep saying it, what can Oban do, nothing. American military personnel , continue saying CHRISTMAS THE WAY YOU HAVE SAID IT ALL YOU LIVES! !!!
Exactly like Rick said, PLUS he’s no President of THESE United States. He’s a Marxists dictator who’s hijacked the office of President !!!
I am sick of the abomination of a human doing damage to America.
That cannot be enforced. Do not obey.