Who is Yahya Sinwar, the Hamas leader Israel says it has killed?

Soon after, Hamas’ leader in exile, Ismail Haniyeh, was killed while visiting Iran in an explosion that was blamed on Israel. Sinwar was then chosen to take his place as Hamas’ top leader, though he was in hiding in Gaza.

Palestinian militants who carried out the October 2023 attack killed mostly civilians, catching Israel’s military and intelligence establishment off guard and shattering the image of Israeli invincibility.

Israel’s retaliation was crushing. The conflict has killed over 42,000 people, caused widespread destruction in the coastal region, and left hundreds of thousands of Palestinians homeless and many on the verge of starvation.

Sinwar held indirect negotiations with Israel to try to end the war. One of his goals was to win the release of thousands of Palestinians held in Israeli jails, much like the deal that got him released more than a decade ago.

He worked on bringing Hamas closer to the Iran and its other allies across the region. The war he ignited drew in Hezbollah, eventually leading to another Israeli invasion of Lebanon, and led Iran and Israel to trade fire directly for the first time, raising fears of an even more expansive conflict.

To Israelis, Sinwar was a nightmarish figure. The Israeli army’s chief spokesperson, Rear Adm. Daniel Hagari, called him a murderer “who proved to the whole world that Hamas is worse than ISIS,” referring to the Islamic State group.

Always defiant, Sinwar ended one of his few public speeches by inviting Israel to assassinate him, proclaiming in Gaza, “I will walk back home after this meeting.” He then did so, shaking hands and taking selfies with people in the streets.

Among Palestinians, he was respected for standing up to Israel and remaining in impoverished Gaza, in contrast to other Hamas leaders living more comfortably abroad.

But he was also deeply feared for his iron grip in Gaza, where public dissent is suppressed.

In contrast to the media-friendly personas cultivated by some of Hamas’ political leadership, Sinwar never sought to build a public image. He was known as the “Butcher of Khan Younis” for his brutal approach to Palestinians suspected of collaborating with Israel.

Sinwar was born in 1962 in Gaza’s Khan Younis refugee camp to a family that was among hundreds of thousands of Palestinians driven from what is now Israel during the 1948 war surrounding its creation.

He was an early member of Hamas, which emerged from the Palestinian branch of the Muslim Brotherhood in 1987, when the coastal enclave was under Israeli military occupation.

Sinwar convinced the group’s founder, Sheikh Ahmed Yassin, that to succeed as a resistance organization, Hamas needed to be purged of informants for Israel. They founded a security arm, then known as Majd, which Sinwar led.

Arrested by Israel in the late 1980s, he admitted under interrogation to having killed 12 suspected collaborators. He was eventually sentenced to four life terms for offenses that included the abduction and killing of two Israeli soldiers.

Michael Koubi, a former director of the investigations department at Israel’s Shin Bet security agency who interrogated Sinwar, recalled the confession that stood out to him the most: Sinwar recounted forcing a man to bury his own brother alive because he was suspected of working for Israel.

“His eyes were full of happiness when he told us this story,” Koubi said.

But to fellow prisoners, Sinwar was charismatic, sociable and shrewd, open to detainees from all political factions.

He became the leader of the hundreds of imprisoned Hamas members. He organized strikes to improve conditions. He learned Hebrew and studied Israeli society. He was known for feeding fellow inmates, making kunafa, a treat of shredded dough stuffed with cheese.

“Being a leader inside prison gave him experience in negotiations and dialogue, and he understood the mentality of the enemy and how to affect it,” said Anwar Yassine, a Lebanese citizen who spent about 17 years in Israeli jails, much of the time with Sinwar.

Yassine noted how Sinwar always treated him with respect even though he belonged to the Lebanese Communist Party, whose secular principles conflicted with Hamas’ ideology.

During his years in detention, Sinwar wrote a 240-page novel, “Thistle and the Cloves.” It tells the story of Palestinian society from the 1967 Mideast war until 2000, when the second intifada began.

“This is not my personal story, nor is it the story of a specific person, despite the fact that all the incidents are true,” Sinwar wrote in the novel’s opening.

In 2008, Sinwar survived an aggressive form of brain cancer after treatment at a Tel Aviv hospital.

Prime Minister Benjamin Netanyahu released him in 2011 along with about 1,000 other prisoners in exchange for Gilad Schalit, an Israeli soldier captured by Hamas in a cross-border raid. Netanyahu was harshly criticized for releasing dozens of prisoners held for involvement in deadly attacks.

Back in Gaza, Sinwar closely coordinated between Hamas’ political leadership and its military wing, the Qassam Brigades. He also cultivated a reputation for ruthlessness. He is widely believed to be behind the unprecedented 2016 killing of another top Hamas commander, Mahmoud Ishtewi, in an internal power struggle.

He also married after his release.

In 2017, he was elected head of Hamas’ political bureau in Gaza. Sinwar worked with Haniyeh to realign the group with Iran and its allies, including Lebanon’s Hezbollah. He also focused on building Hamas’ military power.

Bassem Mroue, The Associated Press

by Canadian Press

Who is Yahya Sinwar, the Hamas leader Israel says it has killed?

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