Among the Muslim Brothers' most notable accomplishments during these early years was its involvement in the 1936–1939 Arab revolt in Palestine. The Muslim Brothers launched a pro-Palestine campaign which contributed to making the Palestine issue a widespread Muslim concern. The Muslim Brothers carried out a fundraising campaign said to have relied upon donations from the rural and urban working classes, rather than wealthy Egyptians. In addition to their fundraising efforts, the Muslim Brothers also organized special prayers for Palestinian nationalists, held political rallies, and distributed propaganda. Although the Palestinian Revolt was ultimately suppressed through repression and military action, the Muslim Brothers' impressive mobilization efforts helped make the Palestinian question a pan-Arab concern in the Middle East.