Riot policemen detain a protester as another (L) tries to stop him at a candle lit rally near the Myongdong Cathedral in central Seoul November 18, 2009. About 200 people were holding a candle lit vigil to oppose the plan to dispatch South Korean troops to Afghanistan. U.S. President Barack Obama arrived in South Korea on Wednesday and will hold a summit with South Korean President Lee Myung-bak on Thursday, with North Korea and a trade deal topping the agenda of their talks. REUTERS/Lee Jae-Won (SOUTH KOREA MILITARY POLITICS CONFLICT)
REUTERS/LEE JAE-WON