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:

Hell is where your going!
Then use the power you have! Military do not have the rights and freedoms you have, we give most of them uo when we enlist, its a dictatorship. You have all the power! By the people for the people. If the people no longer believe this government represents them fairly and justly you have the right to remove it.
opps can’t do that 1st ammendment.
We don’t have a leader here in America we have odummer running us in the ground! Can’t believe how far he has set America back! Ashamed of odummer!
believe that to be an unlawful order, don’t obey it.
You mean the Muslim POTUS doesn’t want people to say merry Christmas? Well Merry Christmas everyone of us and God bless you all!
screw you and the goat you came in on!!!!
Who is listening to him anyway. Can’t stop me
Idiot
He can’t deny anyone the right to say MERRY CHRISTMAS. He don’t have the power to trump the 1st amendment. He may think so, but he is totally delusional.