Reuters Pictures
A man walks past a military barbed wire fence on which reunification banners are hung, 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.