There is no organization that fits all of these criteria. There is no Palestinian/Arab/Islamic militant organization that was founded in 1817. However, a militant organization created in 1987 that rivaled the Palestine Liberation Organization and strongly opposed the Oslo Accords was HAMAS.
Fatah.
Fatah is a PALESTINIAN organization and they come from, as they would define it, the State of Palestine. Observers often call this area the Palestinian Territories or the West Bank, since most of it remains under Israeli occupation.
As this is a "should" question, you may have differing perspectives.Answer 1It depends on what "should" means. If the question is using "should" to refer to what would be best, Fatah should win the Palestinian Civil War. Without question Fatah is more effective at exacting concessions from Israel, improving Palestinians' lives, and interested in peace to a certain degree. If the question is using "should" to refer to what has the highest odds of happening, Hamas should win the Palestinian Civil War. Hamas is more internally organized and more effective as a militant organization. Additionally, they are receiving weapons from Iran, which are stronger than those used by Fatah militants.
Black Panthers
Hamas
Palestine Liberation Organization.
Palestine Liberation Organization.
Hamas
Fatah was created in 1959.
The Congress of Racial Equality was a militant organization founded in 1942.
Fatah Bensalem is 6' 2".