A woman and children pass in front of soldiers of the Brazilian Army as they take positions at a checkpoint during a security operation at Mare Complex shantytown in Rio de Janeiro, Brazil, on April 1, 2015. Rio's police Wednesday began the sheduled plan of replacing the army involved in pacification tasks in the 140,000 inhabitants Mare Complex slum in a process they expect to end by June 30. Despite a recent upsurge in urban violence, Rio de Janeiro officials insisted Wednesday they will manage to pacify slum areas in the run-up to next year's Olympics.  AFP PHOTO / YASUYOSHI CHIBA        (Photo credit should read YASUYOSHI CHIBA/AFP/Getty Images)