American flags and yellow ribbons are more plentiful around the town of Sheldon today as the locals prepare to send off members of a National Guard unit. The 2168th Transportation Company is leaving tomorrow morning for a one-year mission in an undisclosed location in the war on terrorism. The 40-member unit is subject of a sendoff ceremony tonight at six o’clock in the Sheldon High School gym. After the sendoff, the Guardmembers will be led by a police escort to the armory along a route that’s expected to be lined with well-wishers.