A visitor looks north through a barbed wire fence on which South Korean flags and reunification banners are hung, on Freedom Bridge at Imjingak pavilion near the Demilitarized Zone (DMZ) separating the two Koreas in Paju, about 52 km (32 miles) north of Seoul, November 9, 2009. As a united Germany marks the 20th anniversary of the Berlin Wall's fall on Monday, about 1 million soldiers face off across the Cold War's last great divide -- the DMZ separating the two Koreas. Reuters Pictures 1 week ago

A visitor looks north through a barbed wire fence on which South Korean flags and reunification banners are hung, on Freedom Bridge at Imjingak pavilion near the Demilitarized Zone (DMZ) separating the two Koreas in Paju, about 52 km (32 miles) north of Seoul, November 9, 2009. As a united Germany marks the 20th anniversary of the Berlin Wall's fall on Monday, about 1 million soldiers face off across the Cold War's last great divide -- the DMZ separating the two Koreas.