A doll belonging to Guarani Indians lies on the ground on the ancestral land plot they call Tekoha Mykureati near Dourados, Mato Grosso do Sul state, August 4, 2013. The Guarani tribe is immersed in a bloody conflict with farmers over possession of their ancestral land that has characteristics of a territorial war, in spite of Brazil's indigenous policy being considered one of the most progressive in the world. The conflict highlights the risks being run by an agricultural superpower whose leftist government is trying to sort out centuries of ethnic disputes over ownership of the land from which much of the nation's wealth sprouts. Picture taken August 4, 2013. REUTERS/Lunae Parracho (BRAZIL - Tags: POLITICS ENVIRONMENT CIVIL UNREST)