On this day, 21 March 1927, the Shanghai insurrection took place in China as 800,000 workers walked out on general strike and a 5,000-strong workers’ militia seized arms and attacked police stations and army barracks. By the next morning the whole city, apart from the foreign concessions, was in the hands of the working class. They held the city until the arrival of the nationalist Kuomintang army, who up until that point had been supported by the Chinese Communist Party, the Soviet Union and some anarchists, who proceeded to massacre communists and militant workers.
This is a short history of the uprising: https://libcom.org/history/chinese-revolution-1925-1927 https://www.facebook.com/workingclasshistory/photos/a.296224173896073/1677496492435494/?type=3