TOPSHOTS Colombian soldiers frisk residents at the Commune 13 -- one of the shantytowns with the highest rates of urban violence -- on March 20, 2013, in Medellin, Antioquia department, Colombia. So far this year, more than 335 people have been killed by urban conflict and more than 400 were displaced, due to gang disputes. To confront violence the government brought 1,000 new policemen. AFP PHOTO/Raul ARBOLEDA