The Gaza war is an armed conflict in the Gaza Strip and Israel, fought as part of the unresolved Israeli–Palestinian and Gaza–Israel conflicts. The war began on 7 October 2023, when the Palestinian militant group Hamas led a surprise attack on Israel, in which 1,195 Israelis and foreign nationals were killed and 251 were taken hostage. Since the start of the Israeli offensive that followed, over 70,000 Palestinians in Gaza have been killed, almost half of them women and children, and more than 170,000 injured. A study in The Lancet estimated that traumatic injury deaths were undercounted and noting a potentially larger death toll when "indirect" deaths are included.
After clearing militants from its territory, Israel launched a bombing campaign and invaded Gaza on 27 October. The Israeli Defense Forces launched numerous campaigns, including the Rafah offensive from May, three battles fought around Khan Yunis, and the siege of North Gaza from October, culminating in a 2025 offensive in Gaza City; and have assassinated Hamas leaders in and outside Gaza. A temporary ceasefire in November 2023 broke down, and a second ceasefire in January 2025 ended with a surprise attack by Israel in March. A third ceasefire came into effect on 10 October after Israel and Hamas agreed to phase one of a US-backed peace plan. On 19 October, after alleged Hamas violations, Israel briefly resumed bombing Gaza before reaffirming the ceasefire the same day, doing the same on 28 October.