The Siege of Masada was a siege of the Jewish fortress of Masada by the Roman Empire in 73-74 AD. The siege was part of the First Jewish–Roman War, and was the last stand of the Jewish rebels against the Roman forces. The siege ended with the mass suicide
From Wikipedia
The hilltop fortress of Masada, in present-day Israel, was successfully besieged and taken by Roman imperial forces between 72 and 73 AD, during the final period of the First Jewish–Roman War. At the time, the fortress was held by members of the Sicarii rebel group. The siege is recorded by a single contemporary written source, The Jewish War by Josephus. According to Josephus, the long siege ended with the mass suicide of the Sicarii and resident Jewish families.