In March 1944, as part of II SS-Panzerkorps, the incomplete Frundsberg was sent with Hohenstaufen to the Eastern Front to counter the great Soviet advance which had steamrolled over Army group Centre and threatened the Polish frontier, trapping German forces - including 1. SS-Panzer Division Leibstandarte SS Adolf Hitler and a battle group from 2. SS-Pz Div Das Reich - in the area around Tarnopol. Still without the PzKw V Panthers of its Panzer regiments I Abteilung, the division assembled with the rest of II SS-Panzerkorps under Armeegruppe Nordukraine, and went into action for the first time in early April. Fierce fighting achieved a breakthrough at Buczacz on 6. April, and Frundsberg linked up with their beleaguered Waffen-SS comrades of 1 Panzerarmee. Frundsberg remained in the line, seeing heavy combat on the Seret (Strypa) river and in the Tarnopol-Kovel region. Halted by units of the 1st Ukrainian Front, the division then spent some weeks in static defensive actions on the Bug River. On 12 June, II SS-Panzerkorps was withdrawn from the Russian Front and rushed west to respond to the Normandy landings, its personnel and equipment filling 67 trains.