Compare two parties

Origins. Hamas was founded in 1987 during the First Intifada by the Gaza Muslim Brotherhood under Sheikh Ahmed Yassin — a Sunni Brotherhood organisation with a half-century parent history. Palestinian Islamic Jihad (PIJ) was founded in 1981 by Fathi Shaqaqi and Abdul Aziz Awda — Brotherhood members who broke with the parent organisation specifically because they wanted the Iranian Revolution's 1979 revolutionary-vanguard model applied to Palestine. The founders called for armed struggle FIRST and broad social-Islamic transformation second; Brotherhood doctrine put da'wa (preaching) first.

Where they diverge. On religious-political doctrine: PIJ explicitly endorses Khomeinist wilayat al-faqih (the Iranian Supreme Leader's clerical sovereignty), making it the only Sunni movement in the world that does so; Hamas's Brotherhood frame does not. On regional patronage: PIJ has the closest direct IRGC operational relationship of any Palestinian armed group; Hamas's relationship with Iran is significant but politically negotiated. On electoral participation: Hamas's political wing has run in Palestinian elections and governed Gaza since 2007; PIJ has never participated in Palestinian elections — viewing electoral participation as a betrayal of revolutionary doctrine. On social services: Hamas runs an extensive welfare network; PIJ is principally militant.

Where they overlap. Both reject Israel's legitimacy. Both refuse the Oslo framework and the two-state solution as outlined by the PA. Both have armed wings (Qassam Brigades for Hamas; al-Quds Brigades for PIJ). Both have lost senior leadership to Israeli targeted killings — Shaqaqi 1995, Awda various times; Yassin 2004, Haniyeh 2024, Sinwar 2024. Both participated in the 7 October 2023 attack.

Why it matters today. PIJ is often described as smaller and more ideologically pure than Hamas; the operational distinction between the two during the Gaza war has been minimal but the political distinction remains. If a post-war Palestinian arrangement requires any armed group to disarm, the order in which the two consent — or refuse — will define what comes next.