Russia-Ukraine updates: Putin says war was ‘unleashed’ on Russia

One year ago, with Ukraine's borders surrounded by what seemed to be a superior military force, many U.S. officials and analysts predicted a swift Russian blitz to Kyiv.

But after Russian President Vladimir Putin sent his more than 150,000 arrayed troops across the border, it soon became clear that a dual reassessment was in order: The Russian invaders were less potent than advertised, and the Ukrainians were unexpectedly stubborn and wily in the defense.

Some of the Russian troops weren’t even aware they were on a combat mission until Ukrainian bullets came cracking past them, according to U.S. officials. Meanwhile, Ukrainian forces stalled a massive Russian supply convoy through direct attacks and by destroying a key bridge. Only one week into the invasion, Putin's men were plagued with food and fuel shortages, morale running similarly low.

Kyiv stood.

"Putin assumed that Ukraine was an easy target, Putin assumed that Kyiv would easily fall, and Putin assumed that the world would stand by," U.S. Secretary of Defense Lloyd Austin said during a speech in Brussels last week. "But the Kremlin was wrong on every count."

Ukrainian forces were armed with more than grit.

They also had years of U.S. and NATO military training, plus American-made weapons, like anti-armor Javelins and anti-aircraft Stinger missiles. These made Russian vehicles vulnerable to ambush, and left Russian helicopter and jet pilots wary of flying over Ukrainian positions. Indeed, many airmen did not return from their sorties.

Despite astonishing losses of soldiers and vehicles, Putin has shown no inclination to end the conflict anytime soon. And despite its tenacity, Ukraine has also taken significant casualties, and is not able to produce enough of its own weapons and ammunition to keep up the fight.

Ukraine, after thwarting the advance on its capital, and later routing Russian forces from Kharkiv, now largely faces a battle of supply.

"When this war began, Russia had a larger population, a much bigger defense budget, a bigger military, bigger industrial base. So, this became an industrial war and a war of industrial bases," said Seth Jones, director of the International Security Program at the Center for Strategic and International Studies. "This is why Western industrial support has been so critical."

A key question now is, despite massive military aid packages and a promise to send even more, could the U.S. strategy ultimately result, not in a Ukrainian victory, but a stalemate in a years-long war of attrition?

-ABC News' Matt Seyler

Asked if he believes in victory, Ukrainian President Volodymyr Zelenskyy said his country "definitely" will if fellow nations keep their word about help and aid.

"Luckily, we’re not alone, so all of us should stay focused," Zelenskyy said.

Zelenskyy also said Ukraine has "put forward its peace plan, peace formula," which is "supported by many nations."

Rather than having bilateral peace negotiations, Zelenskyy suggested a "peace forum with participation of many countries from different continents."

"I’d like to see China, India, other countries approving post-war security guarantees," Zelenskyy said.

-ABC News' Fidel Pavlenko

On the anniversary of the war, the U.S. Commerce Department is adding nearly 200 additional export restrictions on Russian entities for the invasion of Ukraine.

The U.S. has already sanctioned Russia and Belarus with export controls because of the war. The new controls levied Friday limit semiconductor exports to Russia as well as oil and gas exports.

The U.S. said previously that its export controls have impacted on Russia's military.

"Thanks to President Biden's leadership and the collective efforts of the Global Export Control Coalition, we have further degraded Russia's military capabilities by denying access to many components used for aircraft and tanks, as well as semiconductors and other items needed for advanced military applications," U.S. Deputy Secretary of Commerce Don Graves said in a statement.

-ABC News' Luke Barr

As tens of thousands of invading Russian troops and tanks thundered across his nation's border in February 2022, Ukrainian President Volodymyr Zelenskyy received an offer from the United States to evacuate him and his family out of the country.

But in the biggest moment of his yet budding political life, with a world superpower bearing down with brutal force, Zelenskyy rejected the offer to escape, replying, "The fight is here; I need ammunition, not a ride."

A year later, he and his country are still standing strong, forcefully pushing back against Russian President Vladimir Putin's aggressive campaign to pummel Ukraine into submission.

Zelenskyy set the defiant tone for his country just hours after the war started. He shed his suits and ties for military fatigues and combat boots, and boldly posted a selfie video message to the frightened citizens of his nation. Standing on a street outside his office in the capital city of Kyiv, members of his cabinet and military advisors at his side, the then-44-year-old Zelenskyy stared into the camera and announced he and his leadership team were staying put.

"We are all here defending our independence and we are defending our country and we will keep doing that," he said.

It was a dramatic rallying cry that echoed around the world and began the transformation of Zelenskyy into a wartime hero with some admirers even comparing him to Great Britain's Winston Churchill standing up to Nazi Germany during World War II.

-ABC News' Bill Hutchinson