Ukraine’s Troops Fight War of Ambush and Skirmish Against Russian Invaders

Ukrainian hits on weak targets are very effective,” said Nick Reynolds, a research analyst in land warfare at the Royal United Services Institute, a think tank in London. “What they’re doing is compounding problems the Russians have created for themselves. Still, Mr. Reynolds described Ukraine’s tactics as “a desperate defense” and said its forces will struggle to regain ground. Russian forces, particularly in Ukraine’s east and southeast, have more direct supply lines from Russian-controlled areas. Moscow has been able to pour more and more-lethal forces around cities including Kherson, Kharkiv and Mariupol, which are easier for it to reach.