Acs (Hungarian Rising).
Fought July 2, 1849, between 25,000 Hungarians, under Görgey, and the Russo-Austrian army, greatly superior in numbers, under Prince Windischgrätz. The allies attacked the entrenched camp of the Hungarians, outside Komorn, while the Hungarians made an attempt to turn the allied left. Both attacks were repulsed, and the battle was undecided.