sentences:  Following Suleiman's unsuccessful Siege of Vienna in 1529, Ferdinand I launched a counter-attack in 1530 to regain the initiative and avenge the destruction brought by Suleiman's 120,000 strong army.Suleiman's response came in 1532 when he led a massive army of over 120,000 troops to besiege Vienna again.Ferdinand withdrew his army, leaving only 700 men with no cannons and a few guns to defend Güns (Kőszeg).