The deployment raises the potential for the North Koreans to join Russian forces in Ukraine and suggests expanded military ties between the two nations as Moscow seeks weapons and troops.

Foreign Minister Dmytro Kuleba's resignation offer comes days after Ukrainian President Volodymyr Zelenskyy warned about an imminent Cabinet reshuffle.

We're using new geopolitical and military terms — and resurrecting and revising old ones — to discuss Russia's invasion of Ukraine, a conflict in which information is treated as another battlefield.

An NPR analysis of security footage and photos following the attack on Europe's largest nuclear power plant shows that many of the plant's critical safety systems were in the field of Russian fire.

The reported Russian effort to find Syrians with urban combat experience is the latest indication that Russia's invasion of Ukraine is not going as planned.

U.S. soldiers are deploying to Europe amid Russia's invasion of Ukraine, some with barely a week's notice to ensure bills would be paid and make arrangements for relatives to take care of their children and pets. Dozens of soldiers from the Army's 3rd Infantry Division based at Fort Stewart, Georgia, boarded a charter flight Wednesday to Germany.

Monday on Political Rewind: Former U.S. Sen. Sam Nunn offers his insights on Ukraine. Then we talk to Mercer University professor Christ Grant, who watched the crisis unfold while in Ukraine earlier this year, and Ukrainian native Tetiana Lendiel.

The invasion of Ukraine occurred despite weeks of diplomatic efforts, including calls between President Biden and Russian President Vladimir Putin and European leaders' visits to Putin in Moscow.

A Russian-backed separatist leader in eastern Ukraine announced an evacuation to Russia, alleging the Ukrainian military was preparing to invade the area. The U.S. says it's "disinformation."

The U.S. government is telling Americans it's "past time" to leave Ukraine. But James Berk, an optician from New Jersey, has a Ukrainian wife and a newborn baby. For now, they're staying put.

The United States should tell Russia its troops need to be back in their regular barracks by March 1, argues former diplomat Brett Bruen.

As much as 40% of Europe's natural gas supply comes from Russia, a reliance that puts U.S. allies like Germany in a jam when it comes to finding a sanctions solution to the crisis.

Here is how the history of NATO, Russia and Ukraine got so complicated.

With more than 100,000 Russian troops on his borders, President Volodymyr Zelenskyy said Friday that the reaction of world leaders had created a "panic" in his country.