Nato chief says Russia’s Donbas offensive has stalled, while UK intelligence says invasion force has lost a third of its strength
Russia has attacked positions in eastern Ukraine as it tries to encircle Ukrainian forces in the Donbas and fend off a counteroffensive around the city of Izium.
The Nato secretary general, Jens Stoltenberg, said Russia’s offensive in Donbas had stalled and Ukraine could win the war, an outcome few military analysts predicted at the outset of the conflict.
