The missionaries challenged Wari' beliefs by proposing new perspectives. The Wari' originally believed that all Wari' were brothers and that enemies were the same as animals. Missionaries changed the perspective of many Wari' to see all humans as brothers and animals as objects. This switch in perspective established the idea that fighting among brothers (other humans) was bad. To further convey their point, missionaries often lived alongside Wari' and attempted to learn the Wari' language. Parts of the Bible were translated into the Wari' language from 1975 to 1984.