U.S. Treasury Secretary Janet Yellen says industrialized countries in the Group of Seven are imposing a price cap on refined Russian oil products such as diesel and kerosene, as part of a coalition that includes Australia and a tentative agreement from...

European Union officials say the bloc will unveil its 10th package of sanctions against Russia on Feb. 24 to mark the anniversary of Moscow’s full-scale invasion of Ukraine

NATO is calling on Russia to respect the only treaty it has with the United States to keep a lid on nuclear weapons expansion

The Biden administration is faulting Russia for failing to allow on-the-ground nuclear inspections, accusing Moscow of endangering arms control efforts

New U.S. ambassador to Moscow Lynne Tracy arrived last week amid high tensions.

The German official used a leopard emoji in jab at the Russian foreign minister.

The U.S. Coast Guard said it is tracking a suspected Russian spy ship in international waters near Hawaii.

ABC News analyst Mick Mulroy discusses Ukraine President Volodymyr Zelenskyy’s comments on retaking control of Crimea as the U.S. Coast Guard monitors a suspected Russian intelligence ship off Hawaii.

The court would judge on any war crime of aggression by Russia in Ukraine.

Ukrainian officials, however, say as many as 400 Russian troops were killed in the Russian-controlled Donetsk region. This would be the deadliest attack on Russian troops since the war started.

Russian President Vladimir Putin’s New Year’s address to the nation usually is rather anodyne and backed with a soothing view of a snowy Kremlin

The United Nations chief has expressed strong hopes that the Ukraine war will end in 2023

The British prime minister says the West should work to degrade “Russia’s capability to regroup” as it continues its war of aggression in Ukraine

The Kremlin warned the West that Russian has an arsenal of nuclear missiles at its disposal.

Hungary, Romania, Georgia and Azerbaijan leaders have finalized an agreement.

Russia is reportedly trying to obtain hundreds of missiles from Iran in exchange for an unprecedented level of military and technical support.

After the WNBA star was released from Russia in a prisoner swap for arms dealer Viktor Bout, "The View" co-hosts discuss how this move impacts fellow American Paul Whelan.

Convicted arms dealer Viktor Bout has been swapped by the U.S. for American WNBA player Brittney Griner who was detained in Russia earlier this year.

Federal prosecutors announced charges against Andrii Derkach, labeled by the U.S. as a Russian agent and who allegedly sought to influence the 2020 presidential election.

Authorities said it's unclear what caused the animals' deaths.

Russian authorities have rejected a price cap on the country’s oil set by Ukraine’s Western supporters and are threatening to stop supplying the nations that endorsed it

It comes amid efforts to disrupt potential criminal activity by oligarchs.

President Joe Biden welcomed French President Emmanuel Macron to the White House and delivered remarks ahead of a state visit and dinner between the two leaders.

Russia has resorted to firing dummy missiles while also attempting to knock out Ukraine's power grids, affecting the Ukrainian population as winter approaches.

Brittney Griner has been taken to a penal colony in the Russian region of Mordovia, her lawyers said in a statement on Thursday.

Dutch judges are set to deliver their verdict in the trial of three Russians and a Ukrainian over their alleged roles in the 2014 downing of a Malaysia Airlines passenger jet over eastern Ukraine

Brittney Griner, the WNBA star held hostage by Russia, has been transferred to a prison camp somewhere in the country, according to her lawyers.

Kherson, a key city in southeastern Ukraine, has returned to Ukrainian hands and ABC News foreign correspondent Tom Soufi Burridge breaks down what that means for Russian and Ukrainian forces.

In a significant setback Russia will retreat from key Ukrainian city of Kherson

Iran said the drones, used in Ukraine, were supplied to Russia before President Vladimir Putin invaded Ukraine.

Natasha Lance Rogoff, author of the new book "Muppets in Moscow" speaks with ABC News about making the TV show in Russia after the fall of the Soviet Union.

Russian President Vladimir Putin bashed the West in a fiery speech and threatened to target their commercial satellites if they become more involved in the war in Ukraine.

Russian President Vladimir Putin continues to repeat unfounded claims that Ukraine will use a "dirty bomb" as Russian forces conduct exercises of its strategic nuclear forces.

ABC News’ Martha Raddatz interviews NSC Coordinator John Kirby on “This Week.”

ABC News’ Martha Raddatz interviews Adm. Mike Mullen on “This Week.”

ABC News Chief Global Affairs Correspondent Martha Raddatz reports on potential nuclear threats from Russia and North Korea on “This Week.”

Biden needs to "back off" his warning that Putin may use nuclear weapons in the invasion of Ukraine and work toward a diplomatic solution, Mike Mullen said on "This Week"

Biden's warning of possible nuclear "Armageddon" with Russia reflected the stakes amid Putin's invasion of Ukraine not an imminent threat, John Kirby said on "This Week"

Ian Pannell reports on the latest on the war in Ukraine on “This Week.”

ABC News’ Jon Karl interviews retired Gen. David Petraeus on “This Week.”

Russia and NATO are blaming each other over the blast that caused the Nord Stream pipeline to leak methane gas.

The U.S. is responding to Russia's illegal annexation of Ukrainian territory with new sanctions.

The U.S. is seeing signs that Russia and Putin are "struggling" in the invasion of Ukraine, the White House's national security adviser, Jake Sullivan, said Sunday

Russian police forces beat people protesting against President Vladimir Putin's military draft. President Volodymr Zelenskyy said Russian conscripts who surrender will be "treated humanely."

His new nuclear threats over Ukraine raise the risk from a "cornered Putin," experts told ABC News.

The White House say it is prepared to impose additional costs on Russia should it need to.

Some Russians are desperately trying to get out of their own country following President Putin's mobilization of some 300,000 troops to fight in the conflict.

Former senior CIA Field Operative Darrell Blocker discusses the referendums in Ukraine and new fallout from Russian President Vladimir Putin's new troop mobilization.

Secretary of State Blinken accused Russian President Putin of adding "fuel to the fire" by announcing a partial military mobilization.

Alexander Drueke and Andy Huynh, two military veterans from Alabama who were captured while fighting in Ukraine, are now free, their families said.