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 outnumbered but officials say the front is holding.

Russia’s army has vast manpower and equipment advantages over Ukraine but its progress has been slow and Russian military bloggers blame a culture of military corruption.

NATO's surprising move after Ukraine attack stuns Europe and the shocking decision will completely change everything you thought you knew.

As Russia proceeds with a summer offensive on parts of the roughly 1,000-kilometer (620-mile) front line, U.S.-led peace efforts have failed to gain traction.

FILE - In this photo provided by Ukraine's 24th Mechanized Brigade press service, a soldier fires a 120 mm mortar toward Russian army positions near Chasiv Yar, Donetsk region, Ukraine, May 27, 2025.

WASHINGTON, July 10 (Reuters) - President Donald Trump for the first time since returning to office will send weapons to Kyiv under a presidential power frequently used by his predecessor, two sources familiar with the decision said on Thursday, a move suggesting new interest by the president in defending Ukraine.

FILE - In this photo provided by Ukraine's 24th Mechanized Brigade press service, a soldier fires a 120 mm mortar toward Russian army positions near Chasiv Yar, Donetsk region, Ukraine, May 27, 2025.