FGSI

This is a wonderfully informative text about the political milieu that produced Bordiga, Gramsci and, of course, Mussolini... It describes the increasing radicalisation of the youth wing of the italian Socialists from 1910 onwards, leading to increasing adoption of anti-militarist, anti-nationalist and antiparliamentary policies by its most active members.

It's available online elsewhere in various various fragmented and badly proofread versions, so here's a cleaned up version.