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:

Next one will be, “military will now not be able to use guns at all. Guns may offend someone, lie a Muslim brother.”
Obama can go to hell
He is an idiot
Merry Christmas mr. Obama.1rst amendment or do you plane to use executive orders to perverse that.
Anti-Christian POS
F that it’s America you can say merry Christmas
True
wtf? obama , i hope you get the next bomb so you would know how these people feel…i can not wait for you to be out of office..you really are a very poor example of a president that is suppose to be for the people of the united states..shame on you..
Ban Ramadan and whatever other bs holidays that these radical Islamic terrorists follow
And merry christmas..