 The arrancar are first shown scouting Ichigo's hometown by ones and twos, which escalates into sorties, and eventually a battle on earth and in Hueco Mundo between the most powerful arrancar and Soul Reapers.Following Aizen's defeat, the arrancar survivors attempted to become their society before they conquered by the Quincy extremists known as the Wandenreich, with those captured either drafted as expandable foot soldiers or executed as monsters.The Hollows and arrancar inhabit a dimension called , a vast barren desert with quartz "trees" which any hollow can access, leave and return to by tearing a hole in space called a "Garganta".