After continuing Barclay's "delaying operation", defined as "An operation in which a force under pressure trades space for time by slowing down the enemy’s momentum and inflicting maximum damage on the enemy without, in principle, becoming decisively engaged" up to the Battle of Borodino as part of his attrition warfare Kutuzov used Fyodor Rostopchin to burn Moscow's resources as part of a scorched earth strategy, guerilla warfare by the Cossacks against French supplies and total war by the peasants against foraging. This kind of war weakened the French army at its most vulnerable point: logistics. "An army marches on its stomach" says Riehn. On 19 October 1812 after the lost Battle of Tarutino the French army, weakened by attrition and lacking provisions, having warned by the first snow, abandoned the city voluntarily.