Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. US Out of Afghanistan by Christmas? No, That's Just Presidential 'Desire' Carla Babb President Donald Trump's national security adviser says a presidential tweet last week that all U.S. troops should be home from Afghanistan by December 25 was a "desire" rather than a military order, and he reaffirmed a plan to decrease U.S. numbers to 2,500 -- not zero -- by early 2021. "There would be nothing greater than to have our troops home by Christmas, but right now we're on a path with our European allies -- we went into Afghanistan together; we're going to come out together -- we're on a path right now that looks like about 4,500 this fall and a smaller number in January and February," national security adviser Robert O'Brien said Friday in a webinar hosted by the Aspen Institute, a nonprofit group that promotes creation of free and equitable societies through seminars and leadership development programs. .