Antagonism and violence increased still further as resentment against Zionist efforts in the British Mandate of Palestine spread. The Grand Mufti of Jerusalem, Mohammad Amin al-Husayni played a key role in violent opposition to Zionism and closely allied himself with the Nazi regime. From 1941 al-Husayni was based in Germany from where he urged attacks on Jews. There were Nazi-inspired pogroms in Algeria in the 1930s, and massive attacks on the Jews in Iraq and Libya in the 1940s (see Farhud). Pro-Nazi Muslims slaughtered dozens of Jews in Baghdad in 1941.