(called also the reserve corps) advanced on 27 June towards Lébény, on 28 June to cross the Rába at Rábapalota, and after uniting with the Schneider brigade to attack towards Szabadhegy. They were to be followed by the Benedek brigade and the Russian division led by Fyodor Sergeyevich Panyutyin. At the same time on 28 June the I corps attacked Abda. The II corps remained on the southern banks of the Danube, defending Csallóköz and the lower Vág region. 69 350 imperial soldiers faced 17 480 Hungarians. According to Haynau's plan, this offensive had to fulfill several goals: to encircle the VII. corps of Poeltenberg, to occupy Győr, and to cut off the link of the VII. corps with the Kmety division. Poeltenberg's goal was to hold on until he was reinforced. (None would arrive). The Hungarian Operational Office, led by Colonel József Bayer, sent the Hungarian II corps on 28 June to Gönyű, the I corps to Hull, and the III corps to Érsekújvár. On 26 June the Hungarian division led by Kmety, with his 4 530 soldiers and 15 cannon moved away from the Rába-line, retreating towards Pápa. The reason for his move was the crossing of superior imperial troops, before his reinforcements and 4000 cartridges arrived. Even if the reinforcements had arrived in time, Horváth would have had no chance against the four imperial battalions commanded by Colonel Karl Wolf von Wachentreu. The Hungarians lost 16 (according to other sources 30) soldiers during this retreat. Kmety wanted to cross the Rába at Pápoc, and to attack from behind the advancing imperials, but he needed more troops. So he waited for his battalion (which had been sent to Mórichida), but when it returned, he saw that his soldiers were too tired for another march. Instead, he was forced to retreat from Marcaltő. On 27 June Lieutenant Colonel Hümér Kupa received the news about Kmety's retreat from the Rába line and Poeltenberg's order to take a position at Ménfő. On 28 June at 10–11, the latter decided to attack with 14 cavalry companies, 6 battalions, and 21 cannons, hoping to force them to retreat to Mórichida. General György Klapka's (2nd in charge of the main army after Görgei) chief of general staff, Mayor Péter Szillány, ordered Poeltenberg to position his troops between Ménfő, Kismegyer, and Szabadhegy, and to stop the imperial advance. Poeltenberg hoped that, during his attack at