After a number of drone sightings near European airports and military bases, mysterious aircraft were seen over Ireland as Ukraine's Zelenskyy visited.

After two days of "constructive discussions" covering security arrangements and deterrence, they will meet again on Saturday.

Russian President Vladimir Putin's five-hour talks with Trump envoys yield no Ukraine war breakthrough as territorial disputes remain unresolved despite "constructive" discussions.

Ukraine’s top negotiator is scheduled on Thursday to meet in Florida with U.S. special envoy Steve Witkoff, two days after the American's high-stakes meeting with Russian President Vladimir Putin in Moscow, according to a senior administration official.

Mark Rutte's comments come a day after Putin rejected US proposals for peace in Ukraine after talks with US negotiators in Moscow.

In a disused warehouse at an undisclosed location in Ukraine, a military drone instructor who goes by the call sign "DC" showed CBS News a makeshift practice course that students must learn to fly the increasingly indispensable devices through before they join the country's defense against Russia.

The European Union has unveiled a plan to use frozen Russian assets to support Ukraine over the next two years.

MOSCOW — Russian President Vladimir Putin met with President Donald Trump ’s special envoy tasked with negotiating an end to Russia’s war in Ukraine, as well as his son-in-law, for a "constructive" five-hour meeting Tuesday, but more work needs to be done, Yuri Ushakov, a foreign policy adviser to Putin, said in a video the Kremlin posted online.

European leaders have reportedly expressed fears about the Trump administration using peace negotiations to “betray” Ukraine as the country seeks to end its nearly four-year war with Russia.