I see you don’t know much about the Battle of Lepanto, the siege of Castelnuovo, or the 300 Tercios in Buda.
Do you know how important winning the Battle of Lepanto was for Europe? Even then, the Ottomans recovered—just imagine if they had won.
They would probably have attacked Malta again, this time conquering it and then attacking Sicily and southern Italy…
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HRE and Polish–Lithuanian Commonwealth stopped Ottomans:
The Siege and Battle of Vienna took place at Kahlenberg Mountain near Vienna on 12 September 1683 after the city had been besieged by the Ottoman Empire for two months. The battle was fought by the Holy Roman Empire (led by the Habsburg monarchy) and the Polish–Lithuanian Commonwealth, both under the command of King John III Sobieski, against the Ottomans and their vassal and tributary states. The battle marked the first time the Commonwealth and the Holy Roman Empire had cooperated militarily against the Ottomans. The defeat was a turning point for Ottoman expansion into Europe, after which they would gain no further ground.
Khmer would be a good one.