Luke Harding: What happens if this counter-offensive is successful? Does that mean Ukraine has won the war? And what happens if it fails? He says Western partners should continue to support them. But conversely, he adds, there'll be those in perhaps not so much London, but in other countries such as Berlin and Paris who say they can't win. Luke Harding: Ukrainians want victory at any price. They've lost so many people, so many soldiers, so many civilians,. 500 kids killed; their mood is veerments and uncompromising.