For more than four years, Vladimir Putin has projected an image of absolute confidence.

He has cultivated the persona of the unshakable strongman who never bends, never compromises, and never admits weakness.

That image is beginning to crack.

Watching Putin address Russia's ruling United Russia Party congress this past week, I was struck by how different he appeared.

He looked tired, perhaps, even medicated.

The strain of years of war seemed etched across his forehead.

While no one should pretend to diagnose another person's health from television images, the pressure of this conflict now appears impossible to conceal.

More revealing than his appearance were his own words.

For the first time, Putin openly acknowledged that Ukraine's expanding campaign of deep strikes inside Russia has created real problems.

This past Sunday, Putin told a Russian journalist, "As for strikes against critical infrastructure in general, and energy infrastructure in particular, of course these attacks on our infrastructure facilities create problems, that's obvious."

He added, "Right now we're observing a certain shortage, but it's not critical."

Putin's comments were a remarkable admission.

For months, Ukraine has demonstrated an ability to strike targets once considered untouchable: refineries, fuel depots, logistics centers, military airfields, and even facilities around Moscow.

Just last week, Ukraine's drone and missile attacks were carried out across 12 regions, causing extensive damage, including to Russia's refining capacity.

Facing significant fuel shortages, the Kremlin has been forced to devote increasing resources to homeland defense rather than offensive operations.

Worse, Russia is said to be running out of its S-300 anti-missile defense systems.

Putin also admitted publicly he rejected a Ukrainian proposal that both countries halt long-range strikes, making clear that Moscow would not agree to such limitations.

Instead, he has vowed to strengthen Russian air defenses and continue military operations.

That decision says much about where this war now stands.

Russia still occupies significant Ukrainian territory.

But victory has become far more elusive than the Kremlin promised in 2022.

The quick campaign envisioned by Moscow became a grinding war of attrition.

Russia has suffered enormous battlefield losses while Ukraine has steadily expanded its ability to strike deep behind Russian lines.

For the moment, Ukraine appears to be winning.

In the past two months, Russia has lost about 150 square miles back to Ukraine, according to Harvard's Belfer Center.

Crimea, once portrayed by Putin as the crown jewel of his geopolitical triumph, is now experiencing serious economic strain.

Fuel shortages, transportation disruptions, and repeated Ukrainian attacks have undermined the image of stability the Kremlin spent years constructing.

Just as important is what appears to be happening inside Russia itself.

Reports of public frustration over fuel shortages and the economic effects of Ukraine's strikes have become increasingly difficult for the Kremlin to dismiss.

Even Putin's own public comments suggest the war is now being felt far beyond the battlefield.

History reminds us that authoritarian leaders often face their greatest dangers not from foreign armies but from domestic expectations.

The longer a conflict drags on without decisive success, the more pressure builds at home.

President Trump deserves credit for continuing to pursue diplomacy even under extraordinarily difficult circumstances.

Following his meeting with Putin in Alaska last year, many observers believed there remained an opportunity to reduce the violence and move toward at least a temporary ceasefire.

Trump himself believed he had a deal with Putin to end the conflict.

Instead, the fighting intensified as Putin outright rejected Trump's overtures and, instead launched additional large-scale attacks on Ukrainian cities.

At the time, Ukraine reluctantly agreed to accept a limited ceasefire, but no comprehensive agreement emerged as Russia's bombardment continued.

Putin had effectively slapped Trump in the face as the hoped-for diplomatic breakthrough never materialized.

As the Trump administration soured on supporting Kyiv with financial aid, Europe has increasingly stepped into the breach.

European governments have expanded military and financial assistance to Ukraine, sending more than 113 billion euros in aid while continuing to use frozen Russian assets to support Kyiv.

One lesson from this war should now be obvious.

Many of the loudest voices insisting Russia would rapidly overwhelm Ukraine have simply been proven wrong.

Viktor Orban, Tucker Carlson, retired Col. Douglas Macgregor — all who claimed Russia's massive military might would annihilate Ukraine within weeks or months — it simply did not come to pass.

Instead, Ukraine adapted, innovated, and increasingly brought the war back onto Russian territory through long-range drone and missile strikes.

That does not mean Ukraine has won.

Far from it.

Wars often become most dangerous when leaders believe they cannot afford to lose.

That is my greatest concern today.

Putin may increasingly conclude that escalation — not compromise — is his only remaining path.

The success Iran has demonstrated by escalating during its conflict with the U.S. and Israel may show a path for Putin.

After being struck Feb. 28 of this year, Tehran decided to lash out across the whole Gulf region, attacking countries that never attacked it.

Soon afterward, many of these countries were pressuring the U.S. to end its conflict with Iran. That strategy appears to have worked.

During a recent visit to Europe, I encountered growing concern among policymakers that Russia was planning a similar escalation with either a direct or hybrid attack against a NATO country.

Already Russia has been engaged in cyberattacks, sabotage, political interference, or other forms of coercion designed to test the alliance's resolve without triggering full-scale war.

But the fear is Putin must escalate to end the stalemate in Ukraine, to show his country he can fight back, to end Western support for Kyiv, and to make Europe and the U.S. share some of the cost of the war.

His potential calculations deserve serious attention.

Some believe this could result in a Russian attack on one of the Baltic states, such as Latvia or Estonia. One European defense minister suggested such an attack could occur within the next 12 months.

Others believe Putin may attempt something far bolder — such as detonating one or more tactical nuclear devices on NATO soil.

The central question is no longer simply whether Putin can achieve his original objectives in Ukraine.

It is whether he believes anything short of complete success threatens his own political future.

If that is his calculation, the coming months may prove to be among the most dangerous since the war began.

The world should continue supporting diplomacy wherever genuine opportunities exist.

President Trump, thankfully, believes in that.

But we must also recognize reality and prepare for something worse.

Durable peace requires both sides to believe compromise serves their interests.

Right now, Vladimir Putin does not appear ready to make that calculation.

And that should concern every democracy in Europe — and every American who understands that instability abroad rarely stays abroad for long.

Christopher Ruddy is CEO of Newsmax Media, Inc., a leading news company that operates Newsmax TV and Newsmax.com. Read more Christopher Ruddy Insider articles — Click Here Now.