Wars with the Oyo Empire right|thumb|220px|The Oyo Empire and surrounding states around the time of Agaja The Aja kingdoms had been tributaries to the Oyo Empire since the 1680s. After Agaja had conquered Allada, it appears that he sent a smaller tribute and so on April 14, 1726, the Oyo Empire sent its army against Dahomey. The Oyo conquered Abomey and burned the city while Agaja and his troops escaped into the marshes and hid until the Oyo armies returned home.
Wars with the Oyo Empire right|thumb|220px|The Oyo Empire and surrounding states around the time of Agaja The Aja kingdoms had been tributaries to the Oyo Empire since the 1680s. After Agaja had conquered Allada it appears that he sent a smaller tribute and so on April 14, 1726, the Oyo Empire sent its army against Dahomey. The Oyo conquered Abomey and burned the city while Agaja and his troops escaped into the marshes and hid until the Oyo armies returned home.