Jamal al-Husayni represented the party on the Arab Higher Committee, formed on 25 April 1936, during the 1936-39 Arab revolt. Following the violence and assassinations instigated by the various Palestinian nationalist parties and the AHC in mid-1937, the British authorities outlawed the AHC in October 1937 and commenced to roundup its leaders, some of which were deported to the Seychelles. Jamal al-Husayni escaped to Syria, as did Abd al-Qadir al-Husayni. They, as well as Amin al-Husayni, were involved in the 1941 pro-Nazi Rashidi revolt in Iraq. Jamal was captured by the British and interned in Southern Rhodesia, where he was held until November 1945 when he was allowed to move to Cairo.