The Tennessee National Guard says military police units from Bristol and Lenoir City will deploy to Iraq at the end of March. The deployment of the 253rd Military Police Company will include about 170 soldiers. The soldiers will leave from the Lenoir City National Guard Armory on March 28 and will fly to Fort Dix, N.J., for training. The soldiers will train there for about 30-45 days before deploying to Iraq. Almost 20,000 Tennessee Army and Air National Guardsmen have been mobilized since Sept. 11, 2001.