In April 1930, as Sandino's relations with the Communists grew increasingly cool, they leaked information suggesting that Sandino was critical of Portes Gil's government. Put at risk in Mexico, Sandino left the country and returned to Nicaragua. During his period in Mexico, he had become a member of the Magnetic-Spiritualist School of the Universal Commune (EMECU). Founded in Buenos Aires in 1911 by Joaquín Trincado, a Basque electrician, the EMECU blended the political ideals of anarchism with a cosmology which was an idiosyncratic synthesis of Zoroastrianism, Kabbalah and Spiritism. Rejecting both capitalism and Bolshevism, Trincado's brand of communism was based on a "spiritism of Light and Truth," which he believed would supersede all existing religions in the final stage of human history. This stage, which would arise from the political conflicts of the 20th century, would be the time of the founding of the "universal commune", in which private property and the state would be abolished, the hatred caused by false religions would disappear, and all of humanity would be part of one race (Hispanic) and speak one language (Spanish). Although Sandino had communicated with Trincado only through a series of letters, after his return to Nicaragua, his manifests and his personal affiliations were increasingly shaped by his applying the ideals of the EMECU. He named Tricado as one of his official representatives and replaced the former seal (with an image of a campesino beheading a U.S. Marine) with the symbol of EMECU. His distrust of his former Communist associates led him to break off relations with Farabundo Martí, a Salvadoran who was formerly one of his most trusted lieutenants, and accused Martí of spying for the Communists. In February 1931, Sandino issued his "Manifest of Light and Truth", which reflected a new millenarian tone in his beliefs. The manifest proclaimed the coming of the Last Judgment, a time of "the destruction of injustice on the earth and the reign of the Spirit of Light and Truth, that is, Love." He said that Nicaragua had been chosen to play a central role in this struggle, and his army was an instrument of divine justice. "The honor has fallen to us, brothers, that in Nicaragua we have been chosen by Divine Justice to begin the prosecution of injustice on earth." Although Sandino had been unable to secure any outside aid for his forces, the Great Depression made overseas military expeditions too costly for the U.S.