the italian insurrectionary anarchism developed pretty much out of the specific conditions there where the country was on the brink of revolution, there was lots of activity and violence from the right and left but there were anarchists who did not identify with the more formal groupings, anarchist or authoritarian, and began critiquing them while practicing the things that have become their hallmark- small groups, direct action, etc. from italy these ideas spread out, especially in the 80s as they were translated to english and the 90s and early 00s when groups like killing king abacus (feral faun/wolfi landstreicher published there i think?), murder of crows and others began publishing and spreading these ideas.
i think tiqqun comes from a sort of similar trajectory based off the italian stuff but mixed with marxism and other philosophers, agamben for example and is a sort of insurrectionary communism more than anarchism i think.
greece has its own insurrectoinal current that shares some similarities with the italian experience and is informed by the fall of the dictatorship. according to that book about the december riots in 08, greek anarchists in the 80s decided to use violence to separate themselves from other political factions and show their complete opposition. not sure about the theoretical underpinnings there, i think italian stuff probably is popular or there are greek equivalents, bonnano was arrested in greece not too long ago.
'heavens above, how awful it is to live outside the law - one is always expecting what one rightly deserves.'
petronius, the satyricon