Demonstrators shout slogans during a protest against the ongoing Israeli attacks on Gaza in the Puerta del Sol in central Madrid January 4, 2009. Israeli troops and tanks split the Gaza Strip and ringed its main city on Sunday in an offensive against Hamas that has killed more than 500 Palestinians, many of them civilians. The placards read "This is a Holocaust", "Justice for Palestine", "Israel, USA Superterror", and "Intervention and Sanctions Now". REUTERS/Paul Hanna (SPAIN)
REUTERS/PAUL HANNA