SEOUL, Aug. 19 (UPI) -- A North Korean soldier defected through the demilitarized zone, the South's military and local media said Tuesday, the second border crossing this month amid a loudspeaker propaganda campaign by Seoul. "Our military secured one person presumed to be a North Korean on the eastern front today and handed them over to the relevant authorities," an official with Seoul's Defense Ministry said in a statement provided to UPI. Advertisement "The relevant authorities are currently