The Palestine Liberation Organization (PLO) is a Palestinian nationalist political and militant organization founded in 1964, internationally recognized as the official representative of the Palestinian people. It functions as an umbrella political organization representing Palestinians worldwide, including those who lived in mandated Palestine before Israel's creation. Historically known for armed struggle against Israel in the 1970s, it is currently represented by the Palestinian Authority based in Al-Bireh, West Bank, and represents Palestinian interests in the occupied territories.