The East African Federation is a Federation of 10 nations which joined together following the collapse of the Arabian Federation. Their vassal, the Republic of Comchellak was thrown into civil war in 1788 following a slave rebellion and continued to fight the revolting slaves and natives until the Republic surrendered the southern half of Madagascar to the fighting native warlords in 1790. The Republic began funding the native warlord Radama and his Sakalava warriors who established themselves as one of the dominant forces in southern Madagascar, who along with King Andrianampoinimerina of the Merina dominated the south of the island.