Original sentence: Arab separatism in Khuzestan refers to a decades-long separatist movement in the western part of Iranian Khuzestan, which seeks to establish a separate independent state for its Arab residents
Edited sentence: Arab separatism in Khuzestan refers to a decades-long separatist movement in the western part of Iranian Khuzestan, which seeks to establish a separate independent state for its Arab residents, from what they define as "Iranian occupation"