Israeli Prime Minister Benjamin Netanyahu delivered one of the most confrontational addresses in recent United Nations General Assembly history on September 24, 2026, denouncing a mass walkout by delegates as an act of cowardice, personally attacking New York City Mayor Zohran Mamdani as antisemitic, and defending Israel's military actions across the Middle East — all while an International Criminal Court arrest warrant continued to hang over his presence in New York. The speech, which opened with scores of delegates streaming out of the assembly hall, escalated into a broadside against critics that extended from the UN podium to the streets of New York, where a Democratic House candidate was arrested during protests of his appearance.

A Speech Defined by Confrontation

Netanyahu's address to the 193-member General Assembly was shaped from its opening moments by the scale of the protest it inspired. When the Israeli prime minister approached the podium, a mix of cheers, boos, and mass walkouts erupted across the assembly hall. Scores of delegates marched out, leaving a majority of visible seats empty for the duration of the speech. General Assembly President Khalilur Rahman repeatedly called for order in the hall as the scene unfolded.

The walkout had been organized in advance. The Palestinian Mission to the United Nations had sent a message to member nations urging them to bring as many staff as possible to the assembly hall and collectively walk out once Netanyahu was announced, describing the gesture as a signal that no member state was willing to be complicit in what it characterized as genocide, war crimes, and illegal occupation. Israel has consistently rejected all such characterizations of its actions.

Netanyahu responded to the empty seats with defiance. He addressed the delegates who had left directly, calling them moral cowards and inviting any who had not yet departed to do so. He argued that in defending itself, Israel was also defending many of the countries whose representatives had walked out, and made the striking claim that many of their leaders privately thanked Israel for military actions against Iran.

Attacks on New York City's Mayor

The speech took an unusual turn when Netanyahu directed his rhetoric toward a specific American elected official — New York City Mayor Zohran Mamdani. Netanyahu accused Mamdani, a longtime critic of Israeli policy and supporter of Palestinian independence, of antisemitism, telling the assembly that many Jewish residents no longer felt safe in New York since Mamdani took office. He told the hall that Jews who had spoken to him described the city as unrecognizable from what they remembered, and delivered a series of harsh condemnations directed at the mayor personally.

The confrontation carried significant personal weight. During his mayoral campaign, Mamdani had vowed to carry out the ICC arrest warrant against Netanyahu on his next visit to New York, declaring the Israeli leader a war criminal in response to Israel's actions in Gaza. However, Mamdani conceded in July that New York City officials did not have the legal authority to arrest a foreign head of government. Netanyahu's UN address marked his first visit to New York since Mamdani assumed office in January 2026.

Netanyahu also directly addressed Mamdani's criticisms of his government's conduct in Gaza, rejecting accusations of genocide and asserting instead that Israel had prevented genocide. Mamdani responded after the speech by describing Netanyahu's remarks as baseless lies intended to sanitize what he characterized as the genocide of Palestinians, and noted that the ICC arrest warrant remained in effect.

Defending Military Action Against Iran

The bulk of Netanyahu's address was devoted to defending Israel's military posture across the Middle East. He described the decision to attack Iran as one of the easiest decisions he had ever made, and claimed Israel had broken the spirit of Hezbollah in Lebanon. On the subject of violence in the occupied West Bank, Netanyahu downplayed reports of settler violence, attributing it to what he described as juvenile delinquents rather than organized actors.

Netanyahu also rejected allegations of genocide in Gaza as, in his framing, the biggest lie of the century. His remarks carried the tone of a political address at times, reflecting the fact that Israel was preparing for elections. The speech represented an unapologetic assertion of Israel's right to wage war against Iran and its proxy forces, delivered to a global audience at a moment of significant diplomatic tension.

Protests and Arrests in New York City

While Netanyahu spoke at the United Nations, a separate confrontation was unfolding on the streets of New York. Progressive elected officials and nominees gathered to protest his presence in the city, reflecting the depth of domestic opposition to his visit. Among those taking part was Darializa Avila Chevalier, a Democratic candidate for the U.S. House of Representatives, who was arrested during the demonstration.

The arrest of a congressional candidate during protests of a foreign leader's UN visit underscored how deeply Netanyahu's presence had polarized New York City politics. Mamdani's olive tree planting event with Palestinian community members, held in New York on the same day as the UN speech, provided a visible counterpoint to Netanyahu's address and symbolized the sharp local divide over Israeli policy.

The ICC Warrant as Backdrop

Throughout the day, the International Criminal Court arrest warrant against Netanyahu served as an inescapable backdrop to his activities in New York. The warrant, which accuses Netanyahu of war crimes related to the conflict in Gaza, had been the subject of significant diplomatic maneuvering in the months leading up to his visit. Mamdani's initial pledge to enforce it, followed by his legal conclusion that the city could not do so, illustrated the complex intersection of international law, municipal authority, and diplomatic protocol that surrounded the prime minister's trip.

The warrant also shaped the political dynamics of the protests. Demonstrators and progressive officials who gathered to oppose Netanyahu's presence frequently cited the ICC charges as justification for their actions, while supporters of the Israeli government argued that the warrant was politically motivated and undermined the legitimacy of the court.

Political Reactions and Broader Implications

Netanyahu's speech and the events surrounding it highlighted the deep international rift over Israel's conduct in Gaza and its broader regional military strategy. The coordinated walkout at the United Nations represented one of the most visible expressions of that division inside the General Assembly hall, while the street protests in New York reflected parallel tensions within American domestic politics.

The involvement of a Democratic House candidate in the protests and her subsequent arrest introduced a direct electoral dimension to the controversy. With U.S. elections approaching, the political positions that candidates take on Israel, Gaza, and Netanyahu's visit are likely to feature prominently in campaigns, particularly in districts with significant activist and progressive constituencies.

Netanyahu's decision to single out Mamdani by name from the UN podium also signaled an intention to make the New York mayor a focal point of international criticism, a move that could amplify Mamdani's national profile while deepening the political conflict between the two figures. The episode illustrated how local American politics and international diplomacy have become increasingly intertwined in the debate over Israeli policy.

Frequently Asked Questions

Why did delegates walk out during Netanyahu's speech?

The Palestinian Mission to the United Nations had urged member nations to stage a coordinated walkout once Netanyahu was announced, calling it a protest against what it described as genocide, war crimes, and illegal occupation of Palestinian territory. Dozens of delegates from multiple countries left the assembly hall before Netanyahu began speaking.

What is the ICC arrest warrant against Netanyahu?

The International Criminal Court has issued an arrest warrant accusing Netanyahu of war crimes related to Israel's actions in Gaza. The warrant has been a significant diplomatic issue during his international travel. New York City Mayor Zohran Mamdani had initially pledged to enforce the warrant during Netanyahu's visit to New York but later acknowledged that city officials lack the legal authority to arrest a foreign head of government.

Who is Darializa Avila Chevalier?

Darializa Avila Chevalier is a Democratic candidate running for the U.S. House of Representatives. She was among several progressive elected officials and nominees who protested Netanyahu's speech in New York City and was arrested during those demonstrations.

What did Netanyahu say about settler violence in the West Bank?

During his UN address, Netanyahu downplayed reports of settler violence in the occupied West Bank, attributing it to what he called juvenile delinquents rather than organized or state-sanctioned actors. Human rights organizations and Palestinian authorities have documented a significant increase in settler violence in recent years.

Why did Netanyahu attack Mayor Mamdani specifically?

Netanyahu targeted Mamdani because the mayor has been one of the most prominent American elected officials to criticize Israeli policy in Gaza and had publicly pledged to act on the ICC arrest warrant during Netanyahu's visit. Netanyahu accused Mamdani of antisemitism and claimed that Jewish residents no longer feel safe in New York under his leadership. Mamdani has consistently denied accusations of antisemitism and stated that he opposes hate or bigotry of any kind.

What Happens Next

Netanyahu's UN address and the events in New York have deepened the diplomatic and domestic political fallout from his visit. The coordinated walkout at the General Assembly reinforced the extent to which Israel's military actions in Gaza have isolated it among a significant bloc of the international community, while the arrest of a Democratic House candidate during New York protests signals that the controversy will continue to reverberate through American electoral politics.

The ICC arrest warrant remains an active constraint on Netanyahu's international travel, and his decision to single out Mamdani from the UN podium is likely to escalate the political conflict between the Israeli government and progressive American officials. With Israel preparing for elections and U.S. midterm campaigns intensifying, the positions that candidates and elected officials take on Netanyahu's visit, the ICC warrant, and Israeli policy in Gaza are poised to become increasingly central to political debates in the months ahead.

Observers will be watching whether the scale of the UN walkout and the visibility of the New York protests translate into tangible diplomatic or political consequences for Netanyahu's government, or whether the defiant tone of his speech signals a strategy of doubling down in the face of growing international criticism.