 Complete the following phrase:  In September 1914 Berkman and Goldman split, with Berkman hitting the road in an attempt to organize Anti-Militarist Leagues in opposition to World War I and to federate the dispersed array of local anarchist groups into a unified organization. He arrived in California in the spring of 1915 where he became involved in the defense of Mathew Schmidt and David Caplan, anarchists recently arrested following years living underground in connection with the October 1910 