Jets and air defense systems were involved in the response, Warsaw said.

At least three oil tankers have been hit by explosions in what appears to be a stepped up unilateral effort by Ukraine to sink Russia's sanctions-dodging oil sales.

NATO Secretary-General Mark Rutte says a US peace proposal has helped bring Kyiv and Washington closer together on the way toward ending the war between Russia and Ukraine, Europe's biggest and deadliest conflict since World War II.

NATO considers 'more aggressive' stance against Russia's hybrid warfare, including pre-emptive cyber operations, as tensions escalate over sabotage.

President Donald Trump sharply criticised Europe as “decaying” and “weak” on immigration and Ukraine in an interview published on Tuesday, further widening rifts between the United States and some of its oldest allies.

A top Ukrainian sea-drone commander says more complex attacks on Russian forces are expected next year as Kyiv’s uncrewed fleet continues to restrict the once-dominant Black Sea navy

The war in Ukraine has been raging for almost four years; 11 if you start with Crimea’s annexation in 2014. So many predictions have proved wrong along the way: Russia will win within a week. Ukraine is winning, against the odds. Western sanctions will bleed Russia dry and force it to the negotiating table.

Russia and Ukraine said Wednesday they were ready for more talks with the United States to end almost four years of war, after US envoy Steve Witkoff and Donald Trump's son-in-law Jared Kushner left the Kremlin with no breakthrough on a peace deal.

NATO member Lithuania has declared a national emergency over smuggling balloons crossing into its airspace from neighboring Belarus, a key ally of Russia.