The Samu incident or Battle of Samu was a large cross-border assault on 13 November 1966 by Israeli military on the Jordanian-controlled West Bank village of Samu in response to an al-Fatah land mine incident two days earlier near the West Bank border, which killed 3 Israeli soldiers on a border patrol. It purportedly originating from Jordanian territory. It was the largest Israeli military operation since the 1956 Suez Crisis and is considered to have been a contributing factor to the outbreak of the Six-Day War in 1967. Since 1965 Jordan had an active campaign to curb Fatah sabotage activities. The handling of the incident was widely criticised in Israeli political and military circles.