sentences:  The 8 April 1937 issue of "Solidaridad Obrera" opined, "We have made too many concessions and have reached the moment of turning off the tap," while the 2 May issue urged workers to prevent the government from disarming them.On the 25th, Juan Negrín sent security forces to take over posts on the French border in the Pyrenees that had until then been controlled by the CNT, anarchists in Bellver de Cerdanya fought with Negrín's "carabineros", and Roldán Cortada, the Communist leader of the UGT was killed, allegedly by an anarchist.Cortada's funeral was used by the PSUC as an anti-CNT demonstration.