Complex sentence: He carried out reconnaissance and light bombing in the Tétouan area as leader of the group until 1914 when he was transferred to Cuatro Vientos near Madrid in order to become involved in aircraft construction at the new military aircraft workshop.
Split into simpler sentences: He carried out reconnaissance and light bombing in the Tétouan area as leader of the group. In 1914 Barrón was transferred to Cuatro Vientos near Madrid in order to become involved in aircraft construction at the new military aircraft workshop.