The most important of these was aimed at the city of Kharkov .
The most important of these was would be conducted mainly by the Southwestern Front under Semyon Timoshenko , supported by the Southern Front commanded by Rodion Malinovsky .
The most important of these was aimed at the city of Kharkov and would be conducted mainly by the Southwestern Front under Semyon Timoshenko , supported by the Southern Front commanded by Rodion Malinovsky .