In the north a 50,000-strong Russian force is attacking Sumy, a provincial capital. Our model is detecting artillery fire and explosions along the city’s northern defensive lines. Ukraine is badly ...

Ellie Cook is a Newsweek security and defense reporter based in London, U.K. Her work focuses largely on the Russia-Ukraine war, the U.S. military, weapons systems and emerging technology. She ...

WARSAW, June 28 (Reuters) - Poland's departing President Andrzej Duda visited Ukraine on June 28 and urged Kyiv to be patient during the handover to his nationalist successor, Karol Nawrocki.

In total, Russia has now launched more than 900 missiles against Ukraine, according to the senior U.S. defense official. This estimate is up from 810 on Friday.