Palestinian fedayeen in the context of "Palestinian militant groups"

Black September (Arabic: أيلول الأسود, romanized: Aylūl al-ʾAswad), also known as the Jordanian Civil War, was an armed conflict between Jordan, led by King Hussein, and the Palestine Liberation Organization (PLO), led by chairman Yasser Arafat. The main phase of the fighting took place between 16 and 27 September 1970, though certain aspects of the conflict continued until 17 July 1971.

After the 1967 Six-Day War, Palestinian fedayeen guerrillas relocated to Jordan and stepped up their attacks against Israel and what had become the Israeli-occupied West Bank. They were headquartered at the Jordanian border town of Karameh, which Israel targeted during the Battle of Karameh in 1968, leading to a surge of Arab support for the fedayeen. The PLO's strength grew, and by early 1970, leftist groups within the PLO began calling for the overthrow of Jordan's Hashemite monarchy, leading to violent clashes in June 1970. Hussein hesitated to oust them from the country, but continued PLO activities in Jordan culminated in the Dawson's Field hijackings of 6 September 1970. This involved the Popular Front for the Liberation of Palestine (PFLP) seizing three civilian passenger flights and forcing their landing in the Jordanian city of Zarqa, where they took foreign nationals as hostages and blew up the planes in front of international press. Hussein saw this as the last straw and ordered the Jordanian Army to take action.

Ba'athist Syria launched a military intervention in the Lebanese Civil War in 1976, one year after the breakout of the war, as Syrian Arab Armed Forces began supporting Maronite militias against the Palestine Liberation Organization (PLO) and leftist militias. Syria also raised a proxy militia of its own, the Palestine Liberation Army (PLA). Hafez al-Assad's primary objective was to suppress the rise of PLO and allied pro-Palestinian militias in Lebanon which toed a hardline stance against Israel; and the invasion received widespread rebuke in the Arab world.

The involvement was later legalized under the pretext of Arab Deterrent Force of the Arab League. In 1982, Syria battled Israel over control of Lebanon.

As Palestinians have not had a fully-recognized state with a regular army, much of Palestinian political violence in the context of the Israeli–Palestinian conflict has taken the form of insurgency. Common objectives of political violence by Palestinian groups include self-determination in or sovereignty over the region of Palestine, seeking a one-state solution, or the recognition of a Palestinian state. This includes the objective of ending the Israeli occupation. Goals also include the release of Palestinian prisoners held by Israel and recognition of the Palestinian right of return.

Palestinian groups that have been involved in politically motivated violence include the Palestine Liberation Organization (PLO), Fatah, the Popular Front for the Liberation of Palestine (PFLP), the Popular Front for the Liberation of Palestine – General Command (PFLP-GC), the Democratic Front for the Liberation of Palestine, the Abu Nidal Organization, the Palestinian Islamic Jihad, and Hamas. Several of these groups are considered terrorist organizations by the governments of the United States, Canada, the United Kingdom, Japan, New Zealand and the European Union.

Reprisal operations (Hebrew: פעולות התגמול, Pe'ulot HaTagmul) were raids carried out by the Israel Defense Forces in the 1950s and 1960s in response to frequent fedayeen attacks during which armed Arab militants infiltrated Israel from Syria, Egypt, and Jordan to carry out attacks on Israeli civilians and soldiers. Most of the reprisal operations followed raids that resulted in Israeli fatalities. The goal of these operations – from the perspective of Israeli officials – was to create deterrence and prevent future attacks. Two other factors behind the raids were restoring public morale and training newly formed army units. A number of these operations involved attacking villages and Palestinian civilians in the West Bank, including the 1953 Qibya massacre.