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:

Who voted for him twice.We knew he was not a christian.
Merry Christmas merry Christmas
What the heck is wrong with this man I will say merry Christmas he needs to gag himself
Obummer can go to hell with all his other Muslim buddies
So wrong. MERRY CHRISTMAS TO ALL.
#FUCKPOLITICALLYCORRECT #FUCKYOUOBAMA
Merry Christmas to the Military and please IGNORE OBAMA!
That is an unlawful order and needs not be obeyed, and it’s NOT in the UCMJ. Merry Christmas!!!!!!!
Muslim Radical Obama we have freedom of speech so shut your Racist Mouth
Who cares what Ovomit thinks, says, or whether he says Merry Christmas or anything else. He can’t legislate speech…..He’s just a Muslim with a heart full of hate. Merry Christmas Scrooge!