Yahya Sinwar

Yahya Sinwar was a Hamas leader who headed the organization in Gaza from 2017 until his death in 2024. A founder of Hamas’s internal security apparatus, he spent more than two decades in Israeli prison before being released in a 2011 prisoner exchange. He became the organization’s top leader after the killing of Ismail Haniyeh in 2024.

Sinwar was a principal architect of the Hamas-led attack on Israel on 7 October 2023. The attack killed about 1,200 people, mostly civilians, and resulted in the abduction of 251 hostages. Hamas-led attackers committed murder, torture and sexual violence. The massacre began the Israel–Hamas war and led to a devastating Israeli military campaign in Gaza.

Israeli forces killed Sinwar in Rafah on 16 October 2024. His death ended a year-long manhunt but did not end Hamas or the war. Sinwar’s record includes the deliberate targeting of civilians, coercive rule in Gaza and the use of hostages as leverage. Hamas supporters portrayed him as a resistance leader, while Israel and many governments regarded him as a terrorist commander.

Early life and education

Sinwar was born in 1962 in Khan Yunis, in the Gaza Strip. His family had been displaced during the 1948 war and settled in Gaza. He studied at the Islamic University of Gaza, where he became involved in Islamist student politics. His early activism developed amid the Israeli military administration and the growth of Islamist movements among local Arabs.

In 1987, Sinwar helped establish Hamas with Sheikh Ahmed Yassin and other activists. Hamas combined Islamist political organizing with an armed wing and social institutions. Sinwar became involved in its internal security system and in efforts to identify suspected collaborators with Israel. He developed a reputation for ruthlessness and was convicted by Israel for the murder of local Arabs accused of collaboration.

Imprisonment and prisoner exchange

Israeli authorities arrested Sinwar in 1988 and sentenced him to four life terms for the murder of four people, including two Israeli soldiers and two local residents accused of collaboration. He spent 22 years in prison, where he learned Hebrew and studied Israeli politics and society. He became a prominent figure among Hamas prisoners and maintained influence over the organization from detention.

In October 2011, Israel released Sinwar as part of a prisoner exchange for Israeli soldier Gilad Shalit, who had been held in Gaza for more than five years. More than 1,000 Arab prisoners were freed in the deal. Israeli officials later described Sinwar’s release as a strategic mistake because he returned to a senior role in Hamas.

After his release, Sinwar consolidated his position within Hamas. He worked with its military wing and developed ties to Iran and Hezbollah. His experience in prison and familiarity with Israeli political debate informed his strategy. He was willing to negotiate tactical arrangements while rejecting recognition of Israel and maintaining the goal of armed struggle.

Sinwar’s years in prison strengthened his position within Hamas. He learned Hebrew and followed Israeli politics, which helped him assess public debate and government decisions. Israeli authorities considered him a dangerous organizer and kept him in isolation at times. Among detainees, he became a senior figure who could coordinate collective actions and negotiate with prison officials.

The 2011 exchange was mediated through Egypt and involved extensive negotiations. Israel released prisoners convicted of serious offenses, while Hamas obtained the freedom of Gilad Shalit. The agreement was celebrated by Hamas as a victory and criticized by some Israeli officials and victims’ families. Sinwar’s return to Gaza gave him immediate standing and access to the organization’s leadership.

Leadership of Hamas in Gaza

In 2017, Sinwar was elected head of Hamas in Gaza, replacing Ismail Haniyeh, who became chairman of the political bureau. The election reflected Sinwar’s influence among the organization’s military and political leadership. He became the dominant figure in Gaza’s internal affairs and security policy.

Hamas had controlled Gaza since 2007, after a violent conflict with Fatah. Its authorities governed more than two million residents through ministries, police and courts. Sinwar’s leadership relied on coercive security practices, including arrests of political opponents, journalists and activists. Hamas also restricted public protests and used force to suppress dissent.

Sinwar managed relations with Egypt, Qatar, Iran and Israel. Qatar provided financial assistance, Egypt controlled a key border crossing and Iran supplied weapons and training. Israel and Hamas negotiated ceasefires and arrangements for goods and aid through intermediaries. These tactical agreements did not end Hamas’s commitment to armed struggle or remove the group’s control over Gaza.

Hamas developed military infrastructure, including tunnels, rockets and fortified positions. The group’s armed wing, the Izz ad-Din al-Qassam Brigades, operated under a separate military command but coordinated closely with the political leadership. Sinwar’s authority linked the political and military wings and gave him influence over long-term planning.

Under Sinwar, Hamas maintained a system of taxation and public administration while diverting resources to military preparations. Gaza’s economy depended on aid, commerce through border crossings and underground networks. The organization used tunnels to move fighters and supplies, conceal command posts and launch attacks. Israel said the tunnel system was embedded in civilian areas, increasing danger to residents during military operations.

Sinwar’s leadership also involved managing negotiations over ceasefires and prisoner exchanges. Egypt and Qatar served as intermediaries, and the United Nations helped coordinate humanitarian access. These arrangements temporarily reduced fighting but did not settle the political status of Gaza or Hamas’s weapons. The cycle of escalation repeatedly left civilians facing bombardment and shortages.

Sinwar’s rise illustrates the way Hamas joined political administration with an armed organization. His years in Gaza’s leadership coincided with repeated rounds of conflict, restrictions on movement and efforts to maintain the movement’s control. Public statements and negotiations were therefore read against both the group’s governing role and its armed activity. For Israel and other governments, the distinction between political and military leadership did not remove the organization’s responsibility for attacks carried out in its name.

Attack on Israel and war

On 7 October 2023, Hamas launched a coordinated assault from Gaza into Israel. Fighters breached the border, attacked military positions and entered nearby communities and a music festival. They killed civilians and soldiers, abducted hostages and took them to Gaza. The scale and brutality of the attack shocked Israel and the international community.

Sinwar and Hamas leaders described the operation as a response to Israeli policies and called for a regional uprising. Those claims do not justify the intentional murder of civilians, hostage-taking or sexual violence. The attacks violated international humanitarian law and were condemned by the United Nations, the United States, European governments and many Arab states.

Israel’s government, led by Benjamin Netanyahu, declared war on Hamas and launched an air and ground campaign in Gaza. The operation caused extensive destruction, killed tens of thousands of people according to Gaza health authorities and displaced most of the population. Israel said its objectives were to dismantle Hamas’s military and governing capacity and return the hostages.

Sinwar remained in hiding as Israeli forces advanced through Gaza. Israeli intelligence believed he was using the tunnel network and surrounding himself with hostages. Hamas used captives as bargaining leverage in negotiations. Several hostages died in captivity, and others were released through exchanges or rescued by Israeli forces.

Israeli intelligence and public officials had tracked Sinwar for years, but his security practices limited his exposure. He relied on couriers and underground facilities and avoided routine communications. The tunnel network and the presence of civilians complicated military efforts to locate him. Israeli leaders said the search was necessary to dismantle Hamas’s command; critics argued that the campaign’s costs to civilians were disproportionate.

Chairman of the political bureau

In August 2024, Hamas selected Sinwar as chairman of its political bureau after Haniyeh was killed in Tehran. The appointment unified the organization’s leadership under a figure based in Gaza during the war. It signaled that Hamas would not appoint an exile as its public leader and that Sinwar remained central to its strategy.

Sinwar’s leadership affected ceasefire negotiations mediated by Egypt, Qatar and the United States. Hamas demanded an end to the war, Israeli withdrawal and release of prisoners; Israel demanded the return of hostages and the dismantling of Hamas. The parties exchanged proposals but failed to agree on a lasting settlement. Sinwar’s location and communication constraints complicated negotiations.

The war weakened Hamas’s command structure and killed many senior commanders. Sinwar’s ability to direct operations became less clear as communications were disrupted. Israeli officials argued that his survival prolonged the conflict; Hamas presented him as a leader who remained with fighters in Gaza rather than leaving for exile.

Death and aftermath

On 16 October 2024, Israeli troops encountered a small group of Hamas fighters in Rafah. Sinwar was killed during the engagement. Israeli authorities identified his body through dental records and other means. Video from a drone showed a wounded man in a damaged building before the final strike.

Sinwar’s death was confirmed by Hamas the following day. Israeli prime minister Netanyahu called it a major achievement but said the war would continue until the hostages were returned and Hamas dismantled. Hamas later selected Naim Qassem? Actually he heads Hezbollah, correction don't mention. Its Gaza leadership was weakened, and decisions were made by surviving officials in Gaza and abroad.

Sinwar’s death did not end Hamas’s control in parts of Gaza or resolve the hostage crisis. The group continued to fight Israeli forces and remained involved in negotiations. Israel’s campaign continued, while the humanitarian situation worsened. The war’s end depended on a ceasefire, hostage releases, Israeli withdrawal and a political framework for Gaza.

The hostage crisis became a central element of the war. Hamas held Israeli civilians, soldiers and foreign nationals, and some hostages were released through temporary agreements. Families of captives organized public campaigns in Israel and abroad. Sinwar’s leadership treated the captives as bargaining assets, while the Israeli government faced pressure to prioritize their release alongside military objectives.

Legacy and assessment

Sinwar’s political legacy is dominated by the 7 October attack, which killed civilians and ignited a devastating war. He transformed Hamas’s strategy from periodic rocket attacks and limited raids to a large-scale assault intended to alter the regional balance. The operation caused enormous harm to Israeli civilians and also triggered destruction and loss of life in Gaza.

Sinwar maintained Hamas’s armed capacity while governing a population under blockade and conflict. Hamas’s rule included social services and political mobilization, but also repression and the absence of competitive elections. The group’s use of civilian areas for military operations increased the danger to Gaza’s residents, while Israeli operations caused extensive civilian casualties.

His death removed a central decision-maker but did not settle the conflict’s underlying political questions. The future of Gaza depends on security arrangements, reconstruction, governance and the return of hostages. Sinwar’s record demonstrates the costs of leadership that treats civilian lives as instruments of political and military strategy.

The scale of the 7 October attack demonstrated extensive planning. Hamas units practiced assaults on border positions, used drones and explosives to breach the barrier, and coordinated multiple teams. The attack overwhelmed Israeli communities and security forces in the initial hours. The deliberate killing of civilians and abduction of families were central to the operation’s impact, rather than incidental consequences.

Sinwar’s strategy sought to provoke a response that would reshape regional politics and attract international attention. The resulting war inflicted severe harm on Gaza’s residents and led to diplomatic and legal scrutiny. Hamas’s own decisions, including operating from populated areas and refusing to release all hostages, contributed to the danger civilians faced. Its military strategy treated the population it governed as part of the battlefield.