There's no such place as Imizustan. Warabistan is equally fictitious. "Stan" means "homeland" in ancient Persian — hence Pakistan, Afghanistan and so on. A substantial Pakistani community in Imizu, Toyama Prefecture, spawned the nickname Imizustan. Warabi, Saitama Prefecture, hosts a growing community of Kurds. "Warabistan" rolls easily off the tongue. Its coinage was only a matter of time.