Complex sentence: Later, since the abolition of slavery and independence of Gabon, a small number of Gabonese nationals have emigrated to United States from the modern Gabon, fleeing the wars that have taken place there after independence and seeking political asylum.
Split into simpler sentences: Later, since the abolition of slavery and independence of Gabon, a small number of Gabonese nationals have emigrated to United States from the modern Gabon. They arrived to USA fleeing the wars that have taken place there after independence and seeking political asylum.