 As a result, the British planned a massive military and police operation called Operation Agatha, under which Jewish institutions and settlements would be raided and mass arrests carried out against Jewish leaders and Haganah members.The objective of the operation was to find documentary evidence of Jewish Agency complicity in insurgent attacks and of an alliance between the Haganah, Irgun, and Lehi, to break the military power of the Haganah, and to prevent a unilateral declaration of a Jewish state.The operation began on June 29 and continued until July 1.