A tourist takes photos of reunification ribbons displayed on a military barbed wire fence at the Imjingak peace park near the Demilitarized Zone (DMZ) separating the two Koreas in Paju  on November 9, 2009. Twenty years after the Berlin Wall fell, South Korean newspapers urged the government on November 9 to prepare in case the world's last Cold War frontier -- with communist North Korea -- collapses suddenly. Getty Images logo Getty Images 1 week ago

A tourist takes photos of reunification ribbons displayed on a military barbed wire fence at the Imjingak peace park near the Demilitarized Zone (DMZ) separating the two Koreas in Paju on November 9, 2009. Twenty years after the Berlin Wall fell, South Korean newspapers urged the government on November 9 to prepare in case the world's last Cold War frontier -- with communist North Korea -- collapses suddenly.