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.

U.S. Secretary of State Antony Blinken has pledged $135 million in aid to Moldova for energy security and to counter Russian disinformation

Russia and Uzbekistan have signed an accord for Moscow to build a small nuclear power plant in the Central Asian country

Russian forces struck a Ukrainian shopping center in Kharkiv Saturday morning, according to local officials.

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

President Volodymyr Zelenskyy says Ukrainian forces have secured “combat control” of areas where Russian troops entered Ukraine’s northeastern Kharkiv region earlier this month

Local officials say strong wind has blown off the roof of a school in Russia’s southern Krasnodar region, injuring at least 12 children

Officials say a nighttime Russian attack has destroyed train tracks and rolling stock in Ukraine’s northeastern Kharkiv region

Russian state media have reported that an American soldier arrested in Russia’s far eastern city of Vladivostok on charges of stealing has lost an appeal against his detention and will remain in custody

Russian news reports say a deputy chief of the military general staff has been arrested on charges of large-scale bribery

China has sanctioned 12 defense-related U.S. companies and 10 executives over arms sales to Taiwan and to retaliate for earlier American sanctions on Chinese companies tied to Russia

The U.S. has assessed that Russia launched what is likely a counter space weapon last week that's now in the same orbit as a U.S. government satellite, the Pentagon said.

Russia has launched a new counter-space weapon capable of attacking U.S. satellites, according to the Pentagon, and it’s now in the same orbit as a U.S. government satellite.

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

Russian news reports say a general who was relieved of duty last year after complaining about problems faced by his troops in Ukraine has been arrested on charges of widescale bribery

A Russian court has started the trial of a theater director and a playwright facing charges of justifying terrorism over a play they staged, the latest step in the unrelenting crackdown on dissent in Russia that has reached unprecedented levels during ...

The Russian state news agency Tass says a court in St. Petersburg has ordered the seizing of assets of Germany's Deutsche Bank and Commerzbank in Russia

Six people were killed in the Russian attack. Plus, more villages are being evacuated.

ABC News’ Martha Raddatz interviews Victoria Nuland on “This Week.”

ABC News’ James Longman reports on the latest in Ukraine on “This Week.”

At least 11 people were reported killed in attacks in Ukraine’s war-ravaged northeast on Sunday, as Russia pushed ahead with its renewed offensive

I have clear memories of standing behind my mother in clothes stores when I was a kid, waiting for her to find me the right size in a sweater or the right color shirt.

A Russian attack on Kharkiv, Ukraine on May 17 wounded 25 people and killed two people, according to Kharkiv Mayor Ihor Terekhov.

President Putin met with President Jinping in Beijing. The two are pledging a new era of partnership and taking an adversarial tone toward the United States.

Ukrainian President Volodymyr Zelenskyy tells ABC News about the latest Russian offensive, "The situation is very serious. We cannot afford to lose Kharkiv."

Gordon Black, the U.S. soldier detained in Russia, has "admitted guilt" on a charge of theft, according to TASS, a state-owned news service.

Russia's new offensive gained momentum around Ukraine's second-largest city, dealing a blow to Kyiv as it struggles to contain this new front in the war amid delays from the U.S.

Secretary of State Blinken announced the additional aid in Kyiv on Wednesday.

Ukraine said it is battling 30,000 Russian soldiers at the border near Kharkiv, as thousands of civilians have been evacuated due to heavy fighting in the region.

Russia has launched a ground assault in Ukraine's Kharkiv region, attacking new areas to expand the front and stretch Ukraine's forces, says the region's governor.

As Moscow pushes ahead with a ground offensive, a new war front opens in Northeast Ukraine.

A 10-story residential building in Belgorod, Russia, was struck overnight by a Ukrainian missile, a local governor said.

Moscow is blaming Ukraine for the attack on the city of Belgorod that killed at least 12 people and left more than a dozen injured, according to local authorities.

Sergey Shoigu, a key figure in Putin's orbit, served as defense minister for 12 years and has been often painted as one of his closest lieutenants.

Sergey Shoigu, a key figure in Putin's orbit, was defense minister for 12 years.

A lawyer appointed for Gordon Black, a U.S. Army soldier arrested in Russia, has appealed his detention, according to the state-owned TASS news service.

Moscow is blaming Ukraine for the attack on the apartment building in Belgorod, Southern Russia, that killed at least 13 people.

Russian troops with armored vehicles and artillery attempted to break through defense lines in the Kharkiv region. In response, Ukraine's Defense Ministry mobilized reserve units in the area.

Russian forces have launched a new push into the Kharkiv region in Northeastern Ukraine as the Biden administration announces a desperately needed $400 million aid package for Ukraine.

The mom and stepfather of Army soldier Gordon “Chris” Black speak about their son’s recent arrest in Russia.

Russia had previously targeted Ukraine's energy infrastructure on March 22, March 29, April 11 and April 27.

Russia launched at least 21 attack drones, including Iranian-made Shahed drones, along with about 55 missiles, Ukrainian military officials said.

An Army staff sergeant was arrested in the city of Vladivostok late last week and charged with “criminal misconduct.”

An American visiting Russia was detained for "violating public order" and remanded in custody for 10 days, a Moscow court said Tuesday.

A U.S. soldier was detained in Russia on Thursday, May 2, according to a U.S. official.

A U.S. soldier was apprehended in Vladivostok, Russia, on Thursday for alleged criminal misconduct, according to the U.S. Army.

WNBA star Brittney Griner shares her story for the first time about her harrowing months-long detention in Russia in an exclusive interview with ABC News.

WNBA star Brittney Griner reflected on learning she was going to be released from Russian prison and voiced her support for bringing other Americans home.

Jareh Dalke pleaded to six counts of attempting to transmit national defense information to a foreign government