The Swedish-made JAS 39 Gripen would dramatically help modernize Ukraine's air force.

Ukrainian President Volodymyr Zelenskiy said he won’t recognize any territorial swaps during potential peace negotiations with Russia as he tries to rally financial support from European allies.

By Dmitry Antonov, Pavel Polityuk and Simon Johnson MOSCOW/KYIV/LINKOPING, Sweden (Reuters) -Russia said on Wednesday it had carried out a major training exercise involving nuclear weapons, a day after the United States announced a delay in plans for a second summit between presidents Vladimir Putin and Donald Trump on the war in Ukraine.

The Russian Foreign Ministry accused U.S. senators of undermining the work of Moscow and Washington on the reunification of Ukrainian children with their families, an effort spearheaded by first lady Melania Trump.

U.S. president wants a swift end to the conflict, but both sides are digging in over the region in Ukraine’s east.

Ukraine has never used American weapons to strike distant targets on Russian territory. Various long-range weapons have been used in the temporarily occupied territory of Crimea and in the east of the country.

Kyiv is launching air raids deep into Russia with a small number of drones seeking to find holes in Putin's air defences

Ukraine's leader was greeted by King Charles as he arrived in the U.K. on Friday to strategize with European backers on ways to defund Putin's war machine.