The Nuclear Information Project at the Federation of American Scientists estimated that the U.S. had about 3,700 warheads in its nuclear stockpile for delivery by aircraft and ballistic missiles, while Russia and China had 4,309 and 600, respectively.

US President Donald Trump has said that India and Pakistan "made peace" in May after he threatened the two nuclear-armed neighbours to snap trade deals with them if they continued their military confl...

The answer lies in a mix of espionage, foreign help, scientific ambition and geopolitical calculation that unfolded over three decades.

The devastated city -- which was home to some 60,000 people before Russia's February 2022 full-scale invasion -- has become a key focus of the Kremlin's yearslong push to capture all of Ukraine's eastern Donetsk Oblast, which along with neighboring Luhansk Oblast makes up the Donbas region.

Russia said on Wednesday that Ukrainian troops in the battered cities of Pokrovsk and Kupiansk were encircled and should surrender, as they had no chance of survival otherwise.

However, open-source intelligence maps suggest Moscow's troops are probably occupying large areas of Pokrovsk.

Ukraine's military reportedly struck and damaged Russia's Volgograd oil refinery overnight on Nov. 6, Russian Telegram media channels reported.

Ukrainian drones struck a major oil refinery in Russia’s Volgograd region for the second time in almost three months, Ukraine’s general staff said Thursday.

"Rubicon has brilliant management, works systematically, selects the best personnel, provides training, and supplies all necessary resources," she wrote in a Facebook post.

South Africa's government says it has received distress calls from 17 citizens who have joined mercenary forces in the Russia-Ukraine conflict.