 IKL also adopted a strong position on the importance of the Finnish language, following the lead of the Academic Karelia Society and further isolating the Swedish-speaking Gummerus.He finally left the movement in 1934 and took no further role in active politics.Despite his linguistic identity Gummerus went on to criticize Sweden, attacking the "Blue Book" of former Swedish foreign minister Johannes Hellner, which claimed that Sweden had only been interested in cultivating Finland as a good neighbour in the Åland crisis.