What is nationalism? In Brighton we’re a week away from the 13 June attempt by British nationalists (or “patriots”) to march through the city. But what about left, anti-colonial and non-white nationalisms “of the oppressed”?

Reading suggestion is “The Continuing Appeal of Nationalism” written in 1984 by Fredy Perlman.
Available in pamphlet form in the Cowley Club, or online here: https://theanarchistlibrary.org/library/fredy-perlman-the-continuing-appeal-of-nationalism
Some other background reading if you want to go deeper:
Frantz Fanon – The Wretched of the Earth
(the most forceful statement of anti-colonial national uprising: https://monoskop.org/images/6/6b/Fanon_Frantz_The_Wretched_of_the_Earth_1963.pdf)
Benedict Anderson – Imagined Communities
(a detailed scholarly history of origins of nationalist ideas by an anarchist-leaning academic: https://is.muni.cz/el/1423/podzim2013/SOC571E/um/Anderson_B_-_Imagined_Communities.pdf)
