what caused the war?
The  attacks against Israel, including rockets strikes from Fatah and other Palestinian militias into the occupied West Bank.
Fatah
The operation was in response to attacks against Israel, including rockets strikes from Fatah and other Palestinian militias into the occupied West Bank.
who is abu nidal? He was the founder of Fatah. what is it? The Revolutionary Council, a militant Palestinian splinter group more commonly known as the Abu Nidal Organization (ANO). what does the name of the organization mean? It means "opening", "conquering", or "victory". were they involved in any battle? Yes, the Battle of Karameh against whom? The Israeli Defense Forces (IDF)
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Fatah [SEP] Battle of Karameh
Throughout 1968, Fatah and other Palestinian armed groups were the target of a major Israeli Defense Forces (IDF) operation in the Jordanian village of Karameh, where the Fatah headquartersas well as a mid-sized Palestinian refugee campwere located. The town's name is the Arabic word for "dignity", which elevated its symbolism to the Arab people, especially after the Arab defeat in 1967. The operation was in response to attacks against Israel, including rockets strikes from Fatah and other Palestinian militias into the occupied West Bank. Knowledge of the operation was available well ahead of time, and the government of Jordan (as well as a number of Fatah commandos) informed Arafat of Israel's large-scale military preparations.