We republish here a very interesting letter written in 1915 by Serbian socialist Dušan Popović to Christian Rakovsky, the great Balkan internationalist. The letter was published by Nashe Slovo (Our Word), a daily Russian language socialist newspaper published in France during the First World War and edited by Leon Trotsky. We think it contains crucial lessons for the attitude of Marxists towards imperialist war, and the way in which imperialist powers use the rights of nations as a pretext for their real aims.

The Tories are once again whipping up another divisive culture war, blocking attempts to introduce gender recognition reforms in Scotland. But this cynical move will fail in its aims – to distract from the rising tide of class struggle.