The Rohwer internment camp included a 500-acre area for internee living quarters and more than 10,000 acres of surrounding land for farming and timber harvesting. Officially labeled a relocation center, the camps for Japanese Americans during World War II were commonly referred to as concentration camps, a term broadly defined as a place where people are imprisoned because of who they are rather than because they are guilty of any crime. Built as military-style camps, these centers were surrounded by barbed wire and armed guards in watch towers. Today they are also referred to as American concentration camps, internment camps, or incarceration camps.