Blood in Zion:

During the 1940s, the Irgun Zvai Leumi (IZL) launched an intensive guerrilla campaign against the British Mandate authorities in Palestine. Its members embarked on a struggle not conducted in modern times by any Jewish organization. They blew up buildings, they sabotaged roads and bridges, they killed and maimed soldiers, they raided military bases, they robbed banks and they attacked strategic targets all over the country and abroad. By so doing, they endangered the very community on whose behalf they claimed to fight and placed themselves against the consensus represented by the official leadership.