Holy League (1684)

The Holy League (Latin: Sacra Ligua) of 1684 was a coalition of European nations formed during the Great Turkish War. Born out of the Treaty of Warsaw, it was founded as a means to prevent further Ottoman expansion into Europe. This consolidation of a large portion of Europe's military might led to unprecedented military successes, with large areas of previously ceded land recovered in Morea, Dalmatia and Danubia in what has been dubbed a "14th crusade".

The formation of the League has been recognised as a turning point in Ottoman history. By forcing the surrender of the Empire on multiple occasions, it shifted the balance of power away from the Ottomans, leading to a diminished Ottoman presence in Europe and the subsequent dissolution of the League in 1699.