Ukraine's forces have made some marginal gains in the Kursk oblast. They have captured settlements four months into the daring incursion they staged inside Russian territory. Soon after its forces ...

As the war grinds on, sophisticated Russian defenses have pushed Ukraine to develop a frightening new weapon: semiautonomous killing machines.

Ukrainian security services have stepped up drone and sabotage operations against Russian combat aircraft and submarines this month, in what analysts see as one way to combat incessant Russian missile ...