In 1973, Egypt and Syria waged the Yom Kippur War on Israel, and fighting occurred along the 1967 Jordan River cease-fire line. Jordan sent a brigade to Syria to attack Israeli units on Syrian territory but did not engage Israeli forces from Jordanian territory. At the Rabat summit conference in 1974, in the aftermath of the Yom-Kippur War, Jordan agreed, along with the rest of the Arab League, that the PLO was the "sole legitimate representative of the Palestinian people". Subsequently, Jordan renounced its claims to the West Bank in 1988.