Michael Schwirtz

The Kremlin is focusing its fire on Pokrovsk, a gateway to the Donetsk region, which Russia’s president, Vladimir V. Putin, has long coveted.

After Russian drones entered Poland, the country scrambled to shoot them down. Western officials concluded that the incursion was to probe their defenses.

The Polish military called the incursions an “act of aggression.” Poland and NATO air forces launched warplanes to respond, the Polish military said.

Almost six months after a stormy encounter with President Trump, the Ukrainian president returned for high-stakes talks bringing allies and a new approach.

As negotiations over the war carry on, President Vladimir V. Putin is pushing hard with tactics that have evolved over three and a half years.

President Volodymyr Zelensky of Ukraine had a remarkably different White House visit on Monday than the ambush he walked into six months ago. Michael Schwirtz, the global intelligence correspondent for The New York Times, explains how President Zelensky courted President Trump and managed to put the ball back in Vladimir V. Putin’s court.

Russia’s intelligence services turned Brazil into an assembly line for deep-cover operatives. A team of federal agents from the South American country has been quietly dismantling it.

The American president stepped up his warnings about Moscow’s plans after seeing evidence that an attack on Ukraine was imminent.

The U.S. response was not made public but Secretary of State Antony J. Blinken said it contained “core principles” on Ukraine’s sovereignty.

Los servicios de inteligencia rusos hicieron de Brasil un semillero de agentes encubiertos. Un equipo de agentes federales del país sudamericano ha estado desmantelándolo silenciosamente.