Policemen block anti-war activists who are trying to hold a news conference to demand South Korean troops not to be sent to Afghanistan again, near the presidential Blue House in Seoul November 19, 2009, where U.S. President Barack Obama visited to hold a summit with his South Korean counterpart Lee Myung-bak. South Korea said at the end of October it would dispatch a security contingent of police and troops to Afghanistan to help support the U.S.-led mission there. REUTERS/Choi Bu-Seok (SOUTH KOREA MILITARY POLITICS CONFLICT)
REUTERS/CHOI BU-SEOK