Launching weapons from within their territory forces adversaries to look not only outward but also inside for threats, one expert said.

Trump administration in talks with Capitol Hill to amend the Graham-Blumenthal legislation imposing sweeping sanctions on Russia, including 500% tariffs on countries doing business with Moscow.

Russian forces have launched a large-scale drone assault across Ukraine, where officials said three people were killed and 64 others wounded.

Russia is advancing around Kostyantynivka and in the Sumy region with small, fast-moving units as both sides try a new tactic of using motorcycles and civilian cars to quickly cross open terrain.

Mykhailo Drapatyi, a 42-year-old general who took command as Ukraine pushed for military reform, said he replaced half of the leaders under him.

Since then, Russia and Ukraine have swapped dozens of prisoners of war, focusing on under-25s and the severely wounded and sick. There are hopes they could build into some of the biggest exchanges in the war that was triggered by Russia's 2022 invasion of Ukraine.

Ukrainian officials say three people were killed and 13 were wounded when Russia attacked the country with waves of drones and missiles.

The convoy consisted of military trucks and buses carrying army personnel, with 20 soldiers killed in the attack.