Activists from different parts of the world have lanched a manifest on the 20th anniversay of 9/11. See the text here: https://blogs.mediapart.fr/manifeste-20-ans-apres-le-11-septembre/blog/110921/we-must-choose-permanent-war-or-revolutionary-peace.

When we remember 9/11 it is good to remember not only the second one, but also the first one: 9/11 in Chili: https://www.republicworld.com/world-news/rest-of-the-world-news/1973-chile-coup-the-first-9-11-attack-allegedly-backed-by-the-usa.html