Russian aviation faced big delays due to the threat posed by Ukrainian drones, while Moscow's attacks on Ukraine killed at least one person.

The problem is not [that] Another challenge lies in Russia’s evolving drone deployment strategy. With rising production, Moscow is now simultaneously dispatching large swarms of drones, concentrating them on selected targets rather than chaotically scattering them across the country.

Ukraine’s president proposed reviving talks brokered by the Trump administration, which seemed stalled a month ago.

AND TONIGHT HE BRINGS US TO THE FRONT LINES AS HE BEGINS HIS SERIES OF REPORTS CALLED THE WOUNDS OF WAR. ALL ALONG THE FRONT, HUNDREDS MORE BEASTS OF WAR BELLOWED THROUGH THE DAY AND NIGHT. ABOVE THEM DRONES STALKED THE SKIES.

As Trump demands a deal to end the Ukraine war in 50 days, Russia's deputy foreign minister says "demands, especially ultimatums, are unacceptable."

Analysts across Europe fear the war could become what's called a frozen conflict, where Russia retains some Ukrainian territory and there is no lasting peace. NPR's Frank Langfitt reports from Kyiv.

Europe promises more air defence for Ukraine after Kyiv hit by huge drone strike - It comes as the Kremlin suggests Putin and Trump may meet in September