Cuba met at an anti-war congress in El Ferrol, Spain, in April 1915. The congress was poorly planned and prohibited by the Spanish authorities, but delegates managed to discuss resistance to the war and extending international cooperation between syndicalist groups. Argentine, Brazilian, Spanish, and Portuguese delegates later met in October in Rio de Janeiro to continue discussions and resolved to deepen cooperation between South American syndicalists. While syndicalists were only able to put up a rather limited practical struggle against World War I, they also looked to challenge the war on an ideological or cultural level. They pointed to the horrors of war and spurned efforts to legitimate it as something noble. German syndicalists drew attention to the death, injury, destruction, and misery that the war wrought. German, Swedish, Dutch, and Spanish syndicalists denounced nationalism with , a syndicalist journal in Barcelona, calling it a "grotesque mentality". The Dutch newspaper criticized nationalism, because "it finds its embodiment in the state and is the denial of class antagonism between the haves and the have-nots". German and Spanish syndicalists went further still by putting into question the concept of nationhood itself and dismissing it as a mere social construct. The Germans pointed out that most inhabitants of the German Empire identified not as Germans, but in regional terms as Prussians or Bavarians and the like. Multilingual countries like Germany and Spain also could not claim a common language as a defining characteristic of the nation nor did members of the same nation share the same values or experiences, syndicalists in Spain and Germany argued. Syndicalists also argued against the notion that the war was a clash of different cultures or that it could be justified as a defense of civilization. Various cultures were not mutually hostile, they claimed, and the state should not be seen as the embodiment of culture, since culture was the product of the entire population, while the state acted in the interests of just a few. Moreover, they argued that if culture was to be understood as high culture, the very workers dying in the war were denied access to that culture by capitalist conditions. Finally, syndicalists railed against religious justifications for war. Before the war, they had rejected religion as divisive at best, but support for the war by both Catholic and Protestant clergy revealed their hypocrisy and disgraced the principles Christianity claimed to uphold, they claimed.