An emergency task force has arrived in Russia’s southern Krasnodar region to deal with the continuing consequences of an oil spill in the Kerch Strait last month

Japan on Friday approved additional sanctions against Russia over its war on Ukraine, including freezing the assets of dozens of individuals and groups and banning exports to dozens of organizations in Russia and several other countries that have alleg...

Ukrainian President Volodymyr Zelenskyy said that some 38,000 Russian troops have been killed or wounded fighting in Russia's western Kursk region since August.

Ukrainian forces on Sunday launched a new offensive inside Russia's western Kursk border region, going on the attack with substantial forces.

Ukraine appears to be going on the offensive against Russia, attempting to seize more territory inside the Kursk region of Russia, the same region where Ukraine mounted a major offensive in August.

Ukrainian President Volodymyr Zelenskyy says he will urge allies to boost his country's air defenses at a meeting this week in Germany

George Stephanopoulos interviews Rep. Michael McCaul, R-Texas, on “This Week.”

A dolphin rescue center in Russia says 32 dolphins have died since fuel oil spilled out of two storm-stricken tankers three weeks ago in the Kerch Strait near the Russia-occupied Crimean Peninsula

Russia-appointed officials in Moscow-occupied Crimea have announced a regional emergency after oil was detected on the coast of Sevastopol

At least six people were injured in Kyiv as Russia launched a drone strike on the capital in the early hours of Wednesday, city officials said.

The probe into the Azerbaijan Airlines crash in Kazakhstan is examining the conduct of air traffic controllers after the aircraft encountered difficulty, a source said.

Russia launched an aerial attack on Ukraine, striking the capital and other regions with multiple missiles and drones

Ukrainian special forces have released several excerpts from a purported diary it said was found on a North Korean soldier killed in front-line fighting in Russia.

ABC News contributor and former DHS Acting Under Secretary for Intelligence John Cohen discusses the fatal crash that killed at least 38 people in Kazakhstan.

There are early indications that a Russian anti-aircraft system may have struck the Azerbaijan Airlines plane that crashed in Kazakhstan, killing dozens, a U.S. official told ABC News.

Preliminary reports indicate that a Russian-operated missile shot down an Azerbaijan Airlines flight that crashed in Kazakhstan on Christmas Day, according to a U.S. official.

Ukrainians faced fresh Russian drone and missile strikes on energy infrastructure nationwide on Tuesday night into Christmas Day morning.

Ukrainian President Volodymyr Zelenskyy said more than 3,000 North Korean soldiers have been killed or wounded fighting for Moscow in Russia's western Kursk region.

Two Russian airports were put under flight restrictions early Saturday after authorities alleged an attack by Ukrainian drones, according to state-run news agencies.

Russia's war on Ukraine dominated the opening stages of President Vladimir Putin's annual marathon press conference on Thursday.

North Korea may dispatch more troops to Russia despite casualties, South Korea’s National Intelligence told lawmakers during a briefing Thursday.

A senior Russian general was killed in a bomb blast in a residential neighborhood in Moscow, Russian media reported early Tuesday.

Ukraine's intelligence services released new information Tuesday about the conduct of North Korean troops now fighting alongside Russian forces in the Kursk region.

Dashcam video shows the moment a bomb hidden on scooter detonated, killing Lt. Gen. Igor Kirillov and his aide. Ukraine called Kirillov a war criminal, while Russia called the attack terrorism.

A senior Russian general was killed in a bomb blast in a residential neighborhood in Moscow, Russian media reported early Tuesday.

Lt. Gen. Igor Kirillov, the head of Russia's radiation, chemical and biological protection troops, was killed by a hidden explosive in what Ukrainian sources told ABC News was an intelligence operation.

ABC News’ Ian Pannell and ABC News contributor Mick Mulroy discuss the death of Lt. Gen. Igor Kirillov, a senior Russian general who was killed in a bomb blast in a residential neighborhood in Moscow.

The Ukrainian Defense Ministry's Main Directorate of Intelligence said on Monday that at least 30 North Korean soldiers were killed and wounded in weekend battles.

Two Russian tankers believed to be carrying thousands of tons of oil were damaged off the coast of Crimea in the early hours of Sunday.

Russia launched a massive aerial attack against Ukraine, firing 93 cruise and ballistic missiles and almost 200 drones, Ukrainian President Volodymyr Zelenskyy said. ABC News’ Marcus Moore reports.

Nobel Laureate Oleksandra Matviichuk discusses her work exposing underreported stories of the war in Ukraine and Russian's aggression.

Lloyd Austin announced the Pentagon will send nearly $1 billion to Ukraine, bringing the total the United States has committed to Ukraine to more than $62 billion.

The Russian woman accused of sneaking onto a Delta flight from New York to Paris has been charged with knowingly and intentionally secreting herself aboard an airplane.

Russia's top general warned America's top general that U.S. Navy ships should not be close to an upcoming Russian hypersonic missile test in the eastern Mediterranean.

Kremlin spokesperson Dmitry Peskov told the Izvestia newspaper in an interview published Wednesday that Russia sees "no grounds for negotiations yet" to end Moscow's war.

Ukraine's air force said it shot down 22 of 28 Russian drones in Moscow's overnight barrage, though acknowledged "several hits on critical infrastructure facilities."

Ukraine's air force said it recorded 110 Russian attack drones launched into the country overnight into Sunday morning.

Russia has carried out a massive aerial attack on Ukraine’s energy system leaving hundreds of thousands without power as winter sets in across the country.

The U.S. is monitoring military cooperation between Russia and China in the resource-rich arctic. ABC News’ Stephanie Ramos travels to Alaska with special ops forces as tensions rise in the region.

All regions of Ukraine were under air raid alerts early Thursday amid Russia's latest long-range drone and missile barrage against the country's energy grid.

Russian President Vladimir Putin on Friday told the Ministry of Defense leadership that his country "will continue testing the latest system," which is apparently capable of carrying a nuclear weapon.

Russia will continue testing and start mass producing the new "Oreshnik" missile that was used to target Dnipro, Ukraine, Russian President Vladimir Putin said.

House Foreign Affairs Committee Member Rep. Gregory Meeks, D-N.Y., joined ABC News Live to discuss what a second Trump term may mean for the war in Ukraine.

Rep. Adam Smith, D-Wash., ranking member of the House Armed Services Committee, discusses the conflicts overseas.

ABC News’ Ian Pannell reports on the fallout after Russia’s launch of a new hypersonic ballistic missile against Ukraine.

Military analyst Steve Ganyard discusses the possible impact of long-range nuclear missiles if targeted toward Ukraine, and the White House’s growing concern of Putin’s actions.

Russian President Vladimir Putin said the attack on a military complex in the city of Dnipro was a response to Ukraine using U.S.- and British-made missiles, to attack Russia.

Former Deputy Secretary of Defense for the Middle East Mick Mulroy says Russia’s latest strike into Ukraine is “something we have never seen before.”

ABC News’ Ian Pannell shares the latest developments on the war in Ukraine.

Ukrainian forces launched a barrage of British-made long-range cruise missiles into Russia, according to multiple reports, as both sides battle to hold territory ahead of President-elect Trump's term.