The Battle of Tápióbicske was a battle in the Spring Campaign of the Hungarian War of Independence (1848–1849), fought on 4 April 1849 between the Austrian Empire and the Hungarian Revolutionary Army. The Habsburg forces consisted of the I Corps of the Imperial Army led by Lieutenant Field Marshal Josip Jelačić. The Hungarians deployed I and III Corps led by General György Klapka and General János Damjanich respectively. Although initially the careless soldiers of the I. corps were put to flight by the Croatian and Austrian soldiers, after entering in their trap, the Hungarians were victorious, thanks to the intervention of the III. corps, and the main Hungarian armies could advance towards the Hungarian capitals (Buda and Pest), forcing the Austrian high commander, Field Marshal Alfred I, Prince of Windisch-Grätz fight a decisive battle at Isaszeg, which would decide the fate of Central and Western Hungary until the intervention of the Russian forces on the Habsburg side in June 1849.