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Demonstrators shout slogans while marching during a protest called by the main Portuguese union confederation CGTP in Lisbon, Wednesday, Feb. 29, 2012. The demonstration is a part of other protests, against austerity measures being imposed in the eurozone, that have been held in Belgium, Spain and Greece on Wednesday, a day ahead of a European Union summit aimed at tackling unemployment and boosting economic growth in the region. The CGTP has called for a general strike in Portugal on March 22. The banners read in Portuguese "Against the package of exploitation and poverty" and "March 22 General strike". (AP Photo/ Francisco Seco)