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:

MERRY CHRISTMAS….
When does the Bull C**p end???
lol
And who is going to enforce it
FREEDOM OF SPEECH. Merry Christmas.
Violates the First Amendment, but most everything he does violates one law or another.
Also we need to sue this man for violating my freedon of religon
Happy thanksgiving to our Holly God. And Blessings to our Nation Under God. Together we Celebrate Christmas Hollidays. Singing.Peaceful To our Lord Jesus Christ not .Barack Obama.
America how long is it going to take before you people get your heads out of your butts and realize we are in danger with our present goverment who is doing nothing to protect our country and its citizens. Are you all stupid or blind? Remember Pearlharbor, 9-11 (New York City ), what is next? When will this leader of ours is replaced with one we can trust.
How do they say Christmas in Muslim ? Bet he’d let them say that. Oh wait ! They don’t believe in Christ so there can’t be a Christ-mas.