Prime Minister Benjamin Netanyahu vowed that Israel would not be drawn into a war of attrition, even as Iranian threats of retaliation mounted across multiple fronts.

Declaring that Israel was “close to achieving the goals of the campaign,” Netanyahu’s message on Sunday came amid reports that Iran warned it may activate sleeper cells abroad and called on its proxies — from Hezbollah to the Houthis — to target Israeli and American assets in response to the US strikes on its nuclear program earlier in the day.

Also speaking Sunday, US President Donald Trump appeared to entertain the idea of regime change in Tehran — a notable departure from earlier statements by senior administration officials, who have insisted that removing the Islamic Republic’s leadership is not a strategic goal. Writing on Truth Social, he posted: “It’s not politically correct to use the term, ‘Regime Change,’ but if the current Iranian Regime is unable to MAKE IRAN GREAT AGAIN, why wouldn’t there be a Regime change??? MIGA!!!”

Iran, for its part, warned that American bases across the Middle East could come under fire in response to US and Israeli operations.

“We won’t continue our actions beyond what is needed to achieve [the goals], but we also won’t finish too soon,” Netanyahu told reporters. “This is a regime that wants to wipe us out [and] this operation will eliminate the two concrete threats to our existence: the nuclear threat and the ballistic missile threat. We are moving towards achieving these goals and we are very, very close to completing them.”

Meanwhile, Israel has ramped up its airstrikes against Iran, with Defense Minister Israel Katz announcing on X on Monday that the Israeli military was attacking not only the regime’s nuclear and ballistic missile programs but also its infrastructure of domestic repression.

“In accordance with the directives of Prime Minister Benjamin Netanyahu and myself, the IDF [Israel Defense Forces] is now attacking with unprecedented force regime targets and government repression bodies in the heart of Tehran, including the Basij headquarters, Evin Prison for political prisoners and opponents of the regime, the ‘Destruction of Israel’ clock in Palestine Square, the internal security headquarters of the Revolutionary Guards, the Ideology Headquarters, and other regime targets,” Katz said. “For every shot fired at the Israeli home front, the Iranian dictator will be punished, and the attacks will continue with full force. We will continue to work to defend the home front and defeat the enemy until all war goals are achieved.”

Ali Akbar Velayati, a senior adviser to Iran’s supreme leader Ayatollah Ali Khamenei, warned that any site used by American forces — in the region or beyond — could now be targeted. “Any country in the region or elsewhere that is used by American forces to strike Iran will be considered a legitimate target for our armed forces,” he said in remarks published by the state-run IRNA. “America has attacked the heart of the Islamic world and must await irreparable consequences.”

American military intelligence reportedly detected Iran-backed Shi’ite militias in Iraq — and possibly Syria — preparing to launch attacks on US positions following the strikes, The New York Times reported on Sunday. Those groups include some of the most powerful paramilitary factions aligned with Tehran and have a well-established record of targeting American forces with rockets and explosive drones.

The US, meanwhile, ordered the evacuation of staff from its embassies in Iraq and Lebanon, and issued warnings to citizens worldwide about the risk of Iranian reprisal. The Department of Homeland Security cited “a heightened threat environment in the United States,” while the State Department urged Americans abroad to exercise increased caution due to “the potential for demonstrations against US citizens and interests abroad.”

According to a report by NBC News, Iran has privately warned the United States that it could activate sleeper cells on American soil in response to military action. While no specific plots have been publicly disclosed, the threat is being taken seriously by US authorities, who have increased domestic security measures and intelligence monitoring in anticipation of possible attacks. Vice President JD Vance said the administration is examining the possibility of an Iran-backed homeland attack “very closely.”

Beyond the threat of sleeper cells, Iranian retaliation is also expected to come through its regional proxies. On Sunday, Yemen’s Houthis declared that their forces were “ready to target US ships in the Red Sea” in response to the American strike on Iran’s nuclear sites. Washington’s entry into the war has also raised concerns over the possibility that Iran could disrupt global shipping by closing the Strait of Hormuz, a narrow waterway through which roughly 20 percent of the world’s oil and gas supply passes.

However, Sha’ul Chorev, a national security and maritime expert, said that such a move would have limited impact on American energy needs.

“The United States is expected to be largely unaffected by the closure,” he told The Algemeiner, pointing to long-term trends showing a steep decline in US energy imports from the region. In 2024, the US imported around 0.5 million barrels per day of crude oil and condensate from Persian Gulf countries, accounting for just 7 percent of total US imports and 2 percent of overall petroleum consumption. That figure was the lowest in nearly four decades, as domestic production and imports from Canada have increased.

“Regarding the Houthis, oil exports have minimal influence since alternative land routes for oil production in Yanbu exist,” Chorev added.

In Lebanon, Iran’s most heavily armed terror proxy, Hezbollah, is sitting out the fight for now, despite mounting pressure from hardliners in Tehran to escalate. A Hezbollah spokesperson told Newsweek on Sunday that “Iran is a strong country capable of defending itself … Hezbollah remains committed to all matters agreed upon since the ceasefire.”

Lt. Col. (Res.) Sarit Zehavi, a former IDF officer and founder of the Alma Center, said “clear messages were sent to Hezbollah through the Lebanese government that if it will join, it will suffer huge damages while it is already very weak and very busy in recovering since the previous war that ended in November.”

While Hezbollah retains the capacity to fire rockets from its dwindling supply or send small units across the border, it is not in a position to mount a large-scale assault or cause serious nationwide damage.

As a resident of northern Israel, Zehavi added a personal observation about the constant uncertainty facing civilians near the border. “Each time I hear the sirens go, I ask myself whether it’s Iran or Hezbollah and how much time do I have to go to the bomb shelter.”

Maj. (Res.) Shadi Khalloul, a researcher and expert on Hezbollah and Lebanese affairs, said the group is in a deep strategic bind. “There’s a chance they might react, but if they do, it could be the end for them and their community,” he told The Daily Brief. Hezbollah, he said, fears not only a devastating Israeli response but also retribution from Sunni jihadist forces — including those linked to Syrian President Ahmad al-Sharaa (Abu Mohammad al-Julani) — who might seize the opportunity to enter the Bekaa Valley and strike Shia communities in revenge for Hezbollah’s role in the Syrian civil war.

“They know, if they interfere, this will be their end game,” he said. “Not reacting is their chance for survival.”

The post Netanyahu Vows Israel Won’t Be Drawn Into War of Attrition as Iran Threatens US, Allies With Sleeper Cells, Proxy Strikes first appeared on Algemeiner.com.