A US military policeman assigned to a unit in Anchorage, Alaska, was being held Wednesday on suspicion of spying and was expected to face military court charges within days. Spc. William Colton Millay, 22, likely will be charged under the Uniform Code of Military Justice by the end of the week, a spokesman for US Army Alaska told the Army Times. Millay, from Owensboro, Ky., is part of a unit known as the Arctic Enforcers. The unit recently returned from a deployment in Afghanistan. He was arrested Oct. 29 after a joint FBI and US Army Counterintelligence investigation. The US Army Alaska spokesman would not comment on the circumstances surrounding Millay's arrest.