 Complete the following phrase:  Before it was officially disbanded, however, the Spanish Civil War intervened and the corps split and served both sides with the garrisons of Ferrol and Cádiz on the Nationalist side and the garrison of Cartagena, as well as a detachment in Madrid, on the Republican side. During the bitterly fought war the Marines performed garrison duties, led landing parties, and provided expert artillery and machine gun crews. The Republican 151 Brigada Mixta fought mostly inland battles far away from the sea. Photographer Robert Capa took pictures of the Spanish Marine Infantry in the 