The alliance was never completely under Haganah control and the Irgun launched a series of ever more ruthless attacks culminating in the King David Hotel bombing . This attack was the Irgun 's response to a British crackdown , " Black Sabbath " , launched on 29 June 1946 . A combination of the crackdown and the Jewish civilian leadership 's outrage at the King David attack led Ben-Gurion to call off further Palmach operations
King David Hotel bombing
King David Hotel bombing
Palmach