What is Hamas, and why did it attack Israel now?

Updated October 31, 2023 at 3:28 a.m. EDT|Published October 9, 2023 at 7:44 a.m. EDT
Palestinian militants drive toward the border fence with Israel from Khan Younis in the southern Gaza Strip on Oct. 7. (Said Khatib/AFP/Getty Images)
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correction

An earlier version of this article incorrectly described Hamas’s aim as the creation of a Palestinian state along the borders that existed before the 1967 war. Hamas does not recognize the existence of Israel and is committed to replacing it through armed struggle with a Palestinian state stretching from the Mediterranean Sea to the Jordan River. In addition, an earlier version of this article inaccurately characterized Qatar's relationship with Hamas. Qatar works with Hamas to provide humanitarian assistance to civilians in the Gaza Strip, but it does not directly support the group. The article has been corrected.

Israel declared war against Hamas following a surprise attack by the Palestinian militant group based in Gaza that included the taking of civilian hostages at a music festival, where at least 260 bodies were recovered. Israeli security forces, caught off guard by the Oct. 7 attack that killed more than 1,400, are intensifying their air and ground assault on the Gaza Strip.

Israel-Gaza war

The Israel-Gaza war has gone on for six months, and tensions have spilled into the surrounding region.

The war: On Oct. 7, Hamas militants launched an unprecedented cross-border attack on Israel that included the taking of civilian hostages at a music festival. (See photos and videos of how the deadly assault unfolded). Israel declared war on Hamas in response, launching a ground invasion that fueled the biggest displacement in the region since Israel’s creation in 1948.

Gaza crisis: In the Gaza Strip, Israel has waged one of this century’s most destructive wars, killing tens of thousands and plunging at least half of the population into “famine-like conditions.” For months, Israel has resisted pressure from Western allies to allow more humanitarian aid into the enclave.

U.S. involvement: Despite tensions between Israeli Prime Minister Benjamin Netanyahu and some U.S. politicians, including President Biden, the United States supports Israel with weapons, funds aid packages, and has vetoed or abstained from the United Nations’ cease-fire resolutions.

History: The roots of the Israeli-Palestinian conflict and mistrust are deep and complex, predating the establishment of the state of Israel in 1948. Read more on the history of the Gaza Strip.