NATO Secretary-General Jens Stoltenberg held a press conference with Ukrainian President Volodymyr Zelenskyy in Kyiv, to highlight the more than €150 billion of support to Ukraine since Russia launched its invasion.

"Allies are now delivering more jets, tanks, and armored vehicles, and NATO's Ukraine fund is providing urgent support," he said in a statement. "All of this is making a real difference on the battlefield today."

While in Ukraine, the secretary-general visited Bucha and paid his respects to the victims of Russian atrocities.

He also laid a wreath at the Wall of Remembrance of the Fallen for Ukraine, paying tribute to all those who have lost lives or suffered wounds in defense of their homeland.

"Ukraine’s rightful place is in the Euro-Atlantic family. Ukraine’s rightful place is in NATO. And over time, our support will help to make this possible," Stoltenberg said.

-ABC News' Will Gretsky

Just a week after the Pacific Fleet was ordered to stage surprise combat drills, Russian President Vladimir Putin fired the commander of the Russian Pacific Fleet, Sergei Avakyants.

Earlier, Putin praised the Pacific Fleet maneuvers and said that the Navy could be used "for the resolution of conflicts anywhere."

"He turned 65 on April 6. He is still on the Russian Defense Ministry's staff. With the consent of the Russian Defense Ministry, he will head a central body overseeing military sports and patriotic education centers, created on the orders of the [president]," the press service said.

-ABC News' Will Gretsky

Anne Hidalgo, the mayor of Paris, which is hosting the 2024 summer Olympics, told Ukrainian President Volodymyr Zelenskyy that Russian athletes "cannot be accepted in Paris," if the war with Ukraine is still ongoing when the games begin.

"Paris is the capital of human rights," Hidalgo said in a statement. "We are trying to convince athletes, international federations and countries. We stand with you."

Hidalgo and Vasco Cordeiro, the president of the European Committee of the Regions, met with Zelenskyy as part of the International Summit of Cities and Regions Thursday.

Zelenskyy thanked Hidalgo for her support and presented her with Ukraine's "Rescuer City" honorary award.

-ABC News' Max Uzol and Ellie Kaufman contributed to this report.

Russia has fired nearly 80 missiles at Kherson in 24 hours amid ongoing shelling, a local official said.

"For the previous day, we have recorded 79 shellings throughout our territory," First Deputy Chairman of the Kherson Regional Council Yuriy Sobolevskyi said on Telegram earlier Wednesday. "About 300 rounds of ammunition were used by the enemy."

At least two people have sought medical attention due to shelling injuries, according to Sobolevskyi, who noted that the "shelling continues."

-ABC News' Will Gretsky

A Moscow court has sentenced one of Russia's best-known opposition leaders, whose family live in the U.S., to 25 years in prison in what is widely seen a show trial.

Vladimir Kara-Murza is the most high-profile opponent of Russian President Vladimir Putin to be jailed since Alexey Navalny.

Kara-Murza's extraordinarily harsh sentence is one of the lengthiest any opposition figure has received under Putin and illustrates how repressive Russia has become during the war in Ukraine, reverting to something much closer to the USSR where no opposition is tolerated.

Kara-Murza was convicted of treason, as well as "discrediting Russia's armed forces," a new law that effectively criminalizes criticizing the war in Ukraine. He was also convicted of belonging to a banned organization. The charges are widely seen as politically motivated.

Kara-Murza is one of Russia's best-known pro-democracy figures and a veteran critic of Putin.

Kara-Murza, who holds both British and Russian citizenship, spent many years living in the United States and his wife and children still live in Virginia. He was close to the late U.S. Sen. John McCain, who championed human rights in the former Soviet Union.

Dozens of journalists and Western diplomats attended the court hearing on Monday, including the U.S. ambassador who read out a statement condemning the sentence.

"We support Mr. Kara-Murza and every Russian citizen to have a voice in the direction of their country. Mr. Kara-Murza and countless other Russians believe in and hope for a Russia where fundamental freedoms will be upheld. And we will continue to share those hopes and work for that outcome," Amb. Lynne Tracy said.

Kara-Murza previously has survived being poisoned not once but twice. In 2015 and then again in 2017, he suffered organ failure after being exposed to an unknown toxin. Independent researchers later linked the poisoning to the same team of FSB poisoners who targeted Navalny.

He chose to return to Russia after the war began, believing it was important to continue to campaign for freedom in his country and has been an outspoken critic of the invasion.

His trial was held entirely behind closed doors, but a letter containing his closing statement to the court has been released to reporters.

"I only blame myself for one thing," Kara-Murza said in the statement. "I failed to convince enough of my compatriots and politicians in democratic countries of the danger that the current Kremlin regime poses for Russia and for the world."

"Criminals are supposed to repent of what they have done. I, on the other hand, am in prison for my political views. I also know that the day will come when the darkness over our country will dissipate.

-ABC News' Patrick Reevell