 Complete the following phrase:  When the Spanish Civil War commenced in 1936, he rejoined the army on 18 July under general Gonzalo Queipo de Llano, commanding groups of falangists operating in working-class suburbs of Seville with artillery fire. Most of the falangists were from the , a Sevillian aristocratic landowners organisation which he became president of in the 1940s. On 8 August, leading the 9th battery of the third light regiment, he joined the ruthless commander Antonio Castejón Espinosa. Alarcón de la Lastra directed artillery which bombarded towns as part of the Nationalists advance; bombing from the air was also used. Where the resistance to the bombardment was strong it was followed up with the usage of human shields, but in any case the abuse and killings were extreme. Alarcón de la Lastra was thereafter involved in all actions on the march to Madrid, including the 