 Abdülhamid II's secret service believed that German archeologists in the Emperor's retinue were in fact geologists with designs on the oil wealth of the Ottoman empire.Later, the secret service uncovered a German report, which noted that the oilfields in Mosul, northern Mesopotamia were richer than that in the Caucuses.In his first visit, Wilhelm secured the sale of German-made rifles to Ottoman Army, and in his second visit he secured a promise for German companies to construct the Istanbul-Baghdad railway.