According to the White House website, on Wednesday First Lady Michelle Obama held a press preview of this year's White House Christmas holiday decorations. This year's theme is "Joy to All." The White House features 54 decorated trees. Two rooms pay tribute to the sacrifices of the Armed Forces and their families. Children of military families attended the press preview. The 18-foot tall official White House Christmas tree in the Blue Room is trimmed with ornaments made by military children living on bases around the world.