A side that perceives itself to be at a marked disadvantage may deliberately seek out attrition warfare to neutralize its opponent's advantages over time. Sun Tzu has stated, that there is no country that has benefitted from prolonged warfare,[6] but Russia in 1812 won the war with attrition warfare against Napoleon. When attritional methods have worn down the enemy sufficiently to make other methods feasible, attritional methods are often complemented or even abandoned by other strategies.
They should include WW2 in there too, they make mention of the decisive Stalingrad Battle that ground down the Germans in the list of Wars centered on Attrition: