A trooper of Poland's Antiterrorist Police Force storms a train cabin during a joint training with the Elite Special Forces Unit GROM and the Railroad Defence Guard involving a train hostage rescue situation at an undisclosed location in northern Poland ahead of the Euro 2012 soccer championships December 1, 2011. Poland is investing heavily in security for next year's European football championship despite downgrading the number of visitors it expects. Commandoes have been simulating a multiple hostage situation in case criminals target the world's second largest football tournament, which is being co-hosted with Ukraine next June. Picture taken December 1, 2011. REUTERS/Peter Andrews (POLAND - Tags: SPORT SOCCER) (EURO 2012-SECURITY)