The first explosions sounded in Ukraine’s cities before dawn Thursday as Russian President Vladimir Putin launched his long-anticipated military operation in Ukraine. Here’s what to know.

Daniel Martindale helped the Kremlin target Ukrainian troops and was then spirited out of eastern Ukraine by Russian special ...

Russia's nuclear rules say it can use atomic weapons if the country — or one of its allies — is attacked, especially if the ...

A Russian official says American Daniel Martindale has been rewarded with citizenship for spying on Ukraine, "by decree of ...

As Russian military forces and Russian-backed separatists continued striking targets across Ukraine on Thursday, Ukrainian President Volodymyr Zelenskyy called on the public to remain calm while ...

Russia on Sunday fired the biggest number of drones — 472 — at Ukraine since its full-scale invasion in 2022, Ukraine’s air force said, in an apparent effort to overwhelm air defenses.

The Kremlin said U.S. President Donald Trump signaled to Ukraine that it should continue the war after he said he would send ...

General Christopher Donahue, commander of U.S. Army Europe and Africa, said allies could seize Kaliningrad "in a timeframe ...

Former Russian President Medvedev calls for preemptive strikes while Trump gives Putin a 50-day ultimatum to reach peace with ...

Russia said Monday that Ukraine’s military had launched a major attack on the war’s eastern Donetsk front lines, as the counteroffensive Kyiv has touted for months loomed.