Turkish media said that Moscow had approached Ankara with a proposal to buy back the S-400 systems delivered in 2019 in a deal that caused ructions in the NATO alliance and prompted the U.S. to expel Turkey from its F-35 fighter jet program.

The Yale Humanitarian Research Lab says Russia's network of sites for Ukrainian children is larger than previously thought, and programs includes military training for children as young as 8.

Russia's state oil and gas sales in September are set to fall by around 23% from a year earlier on lower prices and a stronger rouble, Reuters calculations show, hitting Moscow's biggest source of revenue.

The Prioritized Ukraine Requirements List gathers NATO contributions, excluding the US, to buy American weapons and equipment.

The presence of the U.S. officers is the latest sign of warming ties between Washington and Belarus, a close Russian ally that allowed Moscow to use its territory to send tens of thousands of troops into Ukraine in February 2022.

A swarm of Russian drones flew last week into Poland in what officials there regarded as a deliberate provocation.

European officials said President Donald Trump is right about the need to end purchases of Russian fossil fuels, but his demand delays new pressure on Moscow for a ceasefire.

The Geran-3, modeled after the Iranian-made Shahed-238, is faster and more advanced than its predecessor.

Denmark is leading a military exercise with hundreds of troops from several European NATO members in Greenland.

European security officials have previously alleged that Russian intelligence is carrying out sabotage against their nations in retaliation for their support for Ukraine.

Russia and North Korea formed a strategic partnership last year, committing both sides to mutual military aid.