Altalena affair

The Altalena Affair was a violent confrontation that took place in June 1948 between the newly created Israel Defense Forces and the Irgun (also known as Etzel), one of the Jewish paramilitary groups that were in the process of merging to form the IDF. The confrontation involved a cargo ship, the Altalena, captained by ex-US Navy lieutenant Monroe Fein and led by senior Etzel commander Eliyahu Lankin, which had been loaded with weapons and fighters by the independent Irgun, but arrived during the murky period of the Irgun's absorption into the IDF. Nineteen Israelis (three IDF soldiers and sixteen Irgun members) were killed in the confrontation. The incident brought the newfound Israel to the brink of civil war.