sentences:  This treaty did not satisfy John Szapolyai or Ferdinand whose armies began to skirmish along the borders.Ferdinand decided to strike a decisive blow in 1537 at John by sending his ablest generals to take Osijek, thereby violating the treaty.The siege failed and led to the Battle of Gorjani, which was a disaster of similar magnitude to that of Mohács with an Ottoman relief army smashing the Austrians.