Two US Navy jets collided during an air show at Mountain Home Air Force Base in Idaho, sending both aircraft crashing to the ground in front of spectators. All four crew members ejected safely before impact.

This is part two of a series examining the challenges confronting the NATO alliance.

POLAND-BELARUS BORDER — Riding in a military convoy escorted by armored vehicles from Poland’s 18th “Iron Division” along the country’s 521-kilometer border with Belarus, soldiers pointed toward dense forests where they say Europe’s newest form of warfare is unfolding.

Polish officials warn illegal migrants weaponized by Russia and Belarus to destabilize NATO’s eastern flank are also making their way to the United States — part of what Warsaw calls an ongoing war against the Western alliance that has direct implications for American security.

The border was once guarded mainly by Poland’s Border Guard and police. But after years of mounting pressure from illegal crossings, Polish officials say the army was deployed because the situation became too large and too dangerous to handle as a conventional immigration challenge.

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Now, the frontier is guarded in layers: soldiers, border guards and rapid-response forces. A temporary barrier built in 2021 has become an electronic fence backed by surveillance systems and military patrols. Polish officials say migrants trying to cross have come from countries including Syria, Somalia, Afghanistan and India.

They describe the crisis as “artificial migration,” saying the illegals are flown into Belarus from the Middle East, Africa and Asia and then transported toward the Polish border by Belarusian authorities in an effort to pressure and destabilize NATO countries.

Military officials at the border said the peak was in 2021, when there were 39,697 illegal crossing attempts. By 2025, it was 29,869, slightly fewer than in 2024. So far in 2026, they have seen a major drop, they say.

For Warsaw, the numbers tell only part of the story.

Polish officials say the border pressure is not spontaneous illegal migration, but a Russian-backed Belarusian operation designed to destabilize NATO from within.

“We are at war,” Ambassador Krzysztof Olendzki of Poland’s Foreign Ministry told Fox News Digital after the border visit.

“Not only Poland, but also all the countries of the eastern flank of NATO, we are in war,” Olendzki said. “We cannot see it as a classical war with soldiers, with tanks and so on, but the war is exercised by our adversaries, by Belarus and Russia, who are using practically migrants as an asymmetric weapon against NATO countries.”

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The crisis dates back to 2021, when Poland, Lithuania and Latvia accused Belarusian President Alexander Lukashenko’s regime of encouraging migrants from the Middle East, Africa and elsewhere to travel to Belarus and cross illegally into the European Union. Belarus has denied orchestrating the flows, but Poland and the EU have described the campaign as hybrid warfare.

Olendzki said the goal is not only to push people across the border, but to create chaos inside Western societies.

The border visit underscored how far Poland has gone to harden what it views as one of NATO’s most vulnerable frontiers.

Capt. Angelika Korkosz of Poland’s 18th Division described the day-to-day strain on soldiers stationed there.

“Many times soldiers were faced with aggression from illegal groups of immigrants, and they have to act appropriately and calmly in accordance with the law and procedures while protecting themselves,” Korkosz told Fox News Digital.

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Polish officials said migrants have used Molotov cocktails in at least two incidents, sparking fires near the border. Soldiers also spoke of a Polish serviceman who died after being stabbed by an illegal migrant at the frontier.

Korkosz said the challenge is not only violence, but exhaustion.

“A few months ago, we had minus-20-degree winters, so 12-hour duty during these conditions is really demanding,” she said. “Many soldiers are here for a long time, and it is getting more and more difficult, this long separation from their relatives.”

Still, she said the troops are prepared.

“The training includes decision-making under pressure in an ambiguous operational environment,” Korkosz said. “That’s why when we are here at the border, we are really well-prepared for performing our duties.”

Poland says the border defenses are working. Amb. Olendzki said the lower number of crossings this year reflects the physical barrier, the increased effectiveness of the Border Guard and the military presence. But he warned the threat has not disappeared, only shifted.

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“Seeing the fact that the Polish-Belarusian border is quite well guarded, our adversaries are just pushing migrants through the borders of our neighboring countries,” he said. “So it hasn’t ended, but it’s changed the direction. The threat still exists, and we must be vigilant.”

That matters to NATO because Poland’s border with Belarus is not only Warsaw’s border. It is also the eastern edge of the European Union and NATO territory.

Belarus is Russia’s closest ally and allowed its territory to be used for Russia’s 2022 invasion of Ukraine. Ukrainian President Volodymyr Zelenskyy warned Russia may be trying to pull Belarus deeper into the war and could use Belarusian territory to threaten Ukraine or even a NATO country.

That fear is central to Poland’s security posture.

During a meeting with reporters in Warsaw, Polish Foreign Minister Radosław Sikorski told Fox News Digital Russia’s war against Ukraine is, for Poland, “a matter of national safety and existence.”

But Sikorski said the threat to NATO countries is already wider than the battlefield in Ukraine.

“We had on NATO countries’ territories assassinations, numerous drone attacks on airports, on critical infrastructure,” Sikorski said. “We had very serious cyberattacks.”

Sikorski said Poland faced a Russian-instigated cyberattack last December on critical energy infrastructure that Warsaw believes was intended “to black out part of Poland.”

The warning fits a broader pattern of concerns across NATO’s eastern flank. The Associated Press reported earlier this year that balloons from Belarus had crossed into Polish airspace for a third consecutive night, with Polish forces describing the incidents as attempts to test air defense responses.

For Poland, illegal migration, cyberattacks, drones, sabotage and disinformation are not separate problems. They are different pieces of one Russian and Belarusian pressure campaign against NATO.

Olendzki said Poland’s role is to stop the pressure before it moves deeper into Europe or beyond.

“Standing on guard on the eastern flank of NATO, we are providing security not only to Poland, to Lithuania, Latvia, Estonia, Finland, but to entire NATO, also to the United States,” he said.

That U.S. connection is a central part of Poland’s message to Washington: The eastern flank is not a distant European problem, but a front line in a broader confrontation with Russia and its allies.

Poland now spends nearly 5% of its GDP on defense, the highest rate in NATO, if based on GPD. Sikorski said Warsaw has long taken defense spending seriously.

“We never went below 2% defense spending,” Sikorski said. “Now we are spending almost 5%. This is real military spending.”

He said the eastern flank has become more influential inside NATO because countries closest to Russia were proven right.

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“The eastern flank is much more powerful than even five years ago,” Sikorski said. “We were right about the nature of Putin’s regime and Russia’s aggressive strategy.”

That view has shaped Poland’s approach to the United States. Warsaw wants American troops to remain in Europe, but Polish officials also acknowledge that Europe must assume more of the defense burden as U.S. attention increasingly shifts toward China and the Indo-Pacific.

Sikorski said Poland understands that “Europe ceased to be angle number one for U.S. foreign policy,” but wants any change in America’s role to be “gradual and well-designed.”

He added that Poland wants the shift in trans-Atlantic security to be “not a divorce, but a new kind of relationship.”

For now, that relationship is being tested along a cold, wooded border where Poland says NATO’s future wars may already be taking shape.

The Polish soldiers patrolling the frontier do not describe their mission in grand geopolitical terms. Korkosz said she joined the military because she wanted to do “something which matters.”

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But to Polish officials, the mission at the Belarus border is much bigger than immigration enforcement.

It is a warning to the rest of NATO that the alliance’s next war may not begin with tanks crossing a border, but with migrants pushed through forests, cyberattacks on power grids, drones near airports and disinformation campaigns designed to fracture societies from within.

Investigators have ruled out that terrorism was at play after a man drove a car into crowd in the Italian city of Modena on Saturday, injuring eight people.

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The driver, a 31-year-old Italian man of Moroccan heritage, hit several people before crashing into a shop window, colliding head-on with a woman. Four people were in critical condition following the incident, authorities said.

The driver, an economics graduate born in 1995 who was not known to the police, went through a spell of “psychological disturbance” in 2022, city prefect Fabrizia Triolo said at a news conference on Saturday.

“He was under treatment in our mental health centres in 2022 because he had problems with schizoid illness, after which he disappeared from the radar and unfortunately reappeared in this form today in a dramatic and unfortunate way,” said the mayor of Modena, Massimo Mezzetti.

His home near Modena has been searched but sources quoted in Italian media said the investigation so far has shown no sign of the man’s radicalisation.

Several injured in critical condition

Among those injured were two foreign citizens: a German tourist on holiday in Italy and a Polish woman. The patients were transported to various hospitals in Emilia Romagna.

A 55-year-old woman, who was crushed against a shop window, is hospitalised at the Ospedale Maggiore in Bologna. The patient’s life is in danger and her legs were amputated.

In the same hospital, a 52-year-old man is in intensive care. A second injured man who was run over by the car also had his lower limbs amputated.

A 53-year-old woman and a 69-year-old woman were instead admitted to Baggiovara Hospital in Modena. In the same facility is a 69-year-old man, whose condition is judged to be less serious.

A 27-year-old girl, a 71-year-old woman and a 47-year-old man were hospitalised at the Policlinico di Modena: they suffered minor injuries and are not in a serious condition.

Pedestrians helped with arrest

Immediately after crashing into the shop window, the driver, identified as Salim El Koudri, abandoned the car and attempted to escape on foot.

The suspect tried to flee the scene but was chased and cornered by four passers-by, then pulled a knife and injured one of them.

Although the 31-year-old was armed with a knife with a 20-centimetre blade, the group managed to immobilise and contain him until the police arrived, to whom he was then handed over.

The Modena Public Prosecutor’s Office formalised the arrest of the attacker on heavy charges of massacre and injuries aggravated by the use of a weapon.

Prime Minister and President visit Modena

Italian Prime Minister Giorgia Meloni and President Sergio Mattarella visited Modena on Sunday.

Meloni had quickly condemned the attack on social media and contacted the victims. She wrote on X that the incident was “extremely serious”.

“I would also like to express my thanks to the citizens who courageously intervened to detain the perpetrator, as well as to the law enforcement officers for their response,” she added.

“I trust that the person responsible will answer to the full for his actions,” Meloni added.

Some far-right politicians quickly seized on the incident as a justification for further tightening controls on immigration, even though the alleged perpetrator is an Italian citizen.

The League party, a member of Meloni’s governing coalition, said the incident showed the need for legislation to revoke residency permits for immigrants when they commit crimes.

League leader Matteo Salvini attempted to emphasise the nationality of origin of the attacker, calling the 31-year-old ‘a second-generation criminal’.

But the city’s mayor Mezzetti pointed out that two Egyptian nationals had helped stop the knife-wielding driver when he tried to run.

The city’s mayor said Modena should “unite against those who want to divide and sow hatred” and called for a gathering in the city centre later on Sunday for a “collective embrace”.

“At the moment I see so much looting on social media and elsewhere, and I want to invite you once again to reflect on the fact that foreigners are not all similar to those who committed this act, there are many honest ones who serve our community,” he added.

The imam of Ravarino, Abdelmajid Abouelala, speaking to the Gazzetta di Modena, said he had never met El Koudri.

“I do, however, know his father well. All I can say about him is that he is a good person, as is the rest of the family. A hard worker, the kind who makes home, work, home. An educated person who I have never heard bad things about”.

“We are really upset by what happened, ours is a small community, we all know each other. I have also asked friends and volunteers: no one knows Salim,” the local Islamic community contact person later said.