During the Ottoman invasion of Central Europe (between late 14th century and circa 1700) Hungarian soldiers protected fortresses and launched light cavalry attacks against the Turks (see Hungarian Hussars). The northern fortress of Eger was famously defended in the autumn of 1552 during the 39-day Siege of Eger against the combined force of two Ottoman armies numbering circa 120,000 men and 16 ultra-heavy siege guns. The victory was very important, because two much stronger forts of Szolnok and Temesvár had fallen quickly during the summer. Public opinion attributed Eger's success to the all-Hungarian garrison, as the above two forts have fallen due to treason by the foreign mercenaries manning them. In 1596, Eger fell to the Ottomans for the same reason.