Ukraine and Russia have exchanged 95 prisoners of war each, three weeks after their last swap and as part of what have been occasional agreements to send captured troops home

After almost 30 months of war with Russia, Ukraine’s difficulties on the battlefield are mounting even as its vital support from the United States is increasingly at the mercy of changing political winds

Ukrainian President Volodymyr Zelenskyy says his country needs 25 Patriot air defense systems to fully defend its airspace and protect the entire country from Russian missile attacks

Russian shelling of Ukraine has killed four people as the two countries exchanged drone attacks, one of which set ablaze a Russian oil depot

The U.N. General Assembly adopted a resolution demanding that Russia urgently withdraw its military and personnel from Europe’s largest nuclear power plant and immediately return the facility to Ukraine

President Joe Biden accidentally called Ukrainian President Volodymyr Zelenskyy by the name of his rival, President Vladimir Putin, when introducing him at the NATO summit.

NATO members had included the accusations against China as part of a wide-ranging declaration.

Russia’s heaviest bombardment of Kyiv in four months has had severe consequences, paralyzing the operations of the country’s largest children’s hospital and severely affecting the young patients already battling life-threatening diseases

Newly elected British Prime Minister Keir Starmer has made his maiden appearance on the international stage with a strong signal of support for Ukraine and a pat on the back from President Joe Biden

Norway says it will donate six F-16 fighter jets to Ukraine

Indian Prime Minister Narendra Modi has discussed the war in Ukraine with the leader of Austria, an ally of Kyiv that has a policy of military neutrality

More than 400 Ukrainian athletes have been killed since the start of the war, including many of the country's brightest Olympics prospects

More than 400 people were busy overnight on rescue operations at the Kyiv children’s hospital and elsewhere, Ukrainian President Zelenskyy said on Tuesday.

Russian missiles blasted cities across Ukraine, damaging the country’s largest children’s hospital and other buildings in a fierce assault that interrupted heart surgeries and forced young cancer patients to take their treatments outdoors

Ukrainian President Volodymyr Zelenskyy says he expects the upcoming NATO summit to provide specific steps to strengthen his country’s air defenses against Russia

Ukrainian athletes training for the Paris Olympics are torn between their sports demand for complete concentration on the here and now, and the war back home that is never far from their minds

ABC News’ Ian Pannell has the latest on the Russian missiles hitting Ukraine, one day before President Joe Biden is set to host a NATO summit in Washington, D.C.

Russian officials say a village in the western border region has been evacuated following a series of explosions after debris from a downed Ukrainian drone set fire to a nearby warehouse

Russian strikes have left over 100,000 households without power in northern Ukraine and cut off the water supply to the regional capital of Sumy

At a Ukrainian scouting group's Spring Festival, children who fled Russia's invasion gather and gain a sense of community.

NATO leaders plan to pledge to keep pouring arms and ammunition into Ukraine at current levels for at least another year

Ukraine’s military says it has retreated from a neighborhood in the outskirts of Chasiv Yar, a strategically important town in the eastern Donetsk region which has been reduced to rubble under a monthslong Russian assault

Authorities say a Russian missile and drone attack on the eastern Ukrainian city of Dnipro has killed five civilians and injured 47 others

Hungarian Prime Minister Viktor Orbán has made his first visit to neighboring Ukraine since Russia’s full-scale invasion

Two years after Ukraine pushed back Russian forces, Kharkiv is facing a barrage of attacks.

Putin's visit to Vietnam is widely seen as aimed at sending a signal that Russia still has friends in the region.

Meeting in Switzerland, Vice President Kamala Harris met with President Zelenskyy and announced another $1.5 billion in aid to Ukraine.

Vice President Harris announced another $1.5 billion from USAID for Ukrainian infrastructure and humanitarian needs.

Col. Oleh Avtomeenko was wounded while performing a combat mission in Donetsk region, on the first days of the Russian full-scale invasion in late February 2022.

President Joe Biden and key allies have agreed to use interest from frozen Russian assets to back a $50 billion loan for Ukraine's war efforts and economic reconstruction.

Ukrainian President Volodymyr Zelenskyy spoke at the G7 summit in Italy with U.S. President Joe Biden to announce a bilateral security agreement to strengthen defense against Russia.

President Joe Biden and Ukraine’s president, Volodymyr Zelenskyy, signed a security agreement to bolster Ukraine’s defenses for 10 years.

President Joe Biden and Ukrainian President Volodymyr Zelenskyy held a press conference Thursday on the sidelines of the G7 summit in Italy.

In a round robin, ABC News correspondents Selena Wang, Mick Mulroy, and Patrick Reevell discuss the impacts of this historical agreement.

ABC News senior White House correspondent Selina Wang is in Bari, Italy, with the latest on the G7 summit.

The money would come from interest accrued on some $300 billion.

"We'll be sending Russia a signal of our resolve," an official said.

The agreement will help Ukraine develop military capacity and production, sources said.

The summit starts Thursday in Italy.

Ukraine on Tuesday launched its Unmanned Systems Forces, a new branch of its military focused on drone warfare that officials said was the first of its kind.

Ukraine needs more from Biden than weapons to defeat Russia, according to experts.

President Biden tells David Muir U.S. weapons will not be used to strike Moscow or the Kremlin in response to Putin’s statement about authorization of American weapons inside Russia.

The Pentagon says that the U.S. Defense secretary reiterated the U.S.'s unwavering support for Ukraine during a security summit in Singapore.

President Joe Biden has given Ukraine permission to strike inside Russia near the area of Kharkiv using American-provided weapons, a U.S. official confirmed to ABC News.

President Joe Biden has given Ukrainian forces permission to strike inside Russia with American weapons. This only applies to the border region near Kharkiv, and not for long-range strikes.

President Biden gave the green light for Ukraine to launch American-supplied weapons into Russia, with President Vladimir Putin calling the move an escalation.

President Joe Biden has authorized Ukraine to utilize U.S.-provided munitions against military targets in only a limited area of Russia to avoid sparking a wider conflict with the West.

The large shopping complex in Ukraine’s second-largest city may have had up to 200 people inside at the time of the strike.

ABC News sat down with Col. Oleksandr Bakulin, commander of Ukraine’s 57th brigade, in a rare interview as his unit battles a Russian offensive near Kharkiv.

Russia has made "tactical gains" in the Kharkiv region of Ukraine, a military expert told ABC News.