Complex sentence: Entering what is now Burkina Faso, Monteil met the Mogho Naba of Mossy, ruler of Ouagadougou but failed to persuade him to agree to a French protectorate and was forced to make a hurried departure.
Split into simpler sentences: Entering what is now Burkina Faso, Monteil met the Mogho Naba of Mossy, ruler of Ouagadougou. Monteil failed to persuade him to agree to a French protectorate and was forced to make a hurried departure.