Final answer:
The Arab militia (murahaleen) attacked and expelled different groups throughout history, including during the Arab-Muslim conquests and the Ottomans.
Step-by-step explanation:
The Arab militia, also known as murahaleen, attacked and expelled various groups in different historical contexts. In Darfur in 2003, the murahaleen, recruited by local Arabs, attacked and expelled the resistance in the region. Another instance of murahaleen attacks occurred during the Arab-Muslim conquests, where they targeted different civilizations and tribes, including the Byzantines and Persians. Additionally, the murahaleen clashed with the Ottomans during the Arab Revolt in World War I.