In spring 1987, a protest movement arose against <answer>new phosphate mines</answer> in Estonia. Signatures were collected in Tartu, and students assembled in the university's main hall to express lack of confidence in the government. At a demonstration on May 1, 1987, young people showed up with banners and slogans despite an official ban. On August 15, 1987, former political prisoners formed the MRP-AEG group (Estonians for the Public Disclosure of the Molotov-Ribbentrop Pact), which was headed by Tiit Madisson. In September 1987, the Edasi newspaper published a proposal by Edgar Savisaar, Siim Kallas, Tiit Made, and Mikk Titma calling for Estonia's transition to autonomy. Initially geared toward economic independence, then toward a certain amount of political autonomy, the project, Isemajandav Eesti ("A Self-Managing Estonia") became known according to its Estonian acronym, IME, which means "miracle". On October 21, a demonstration dedicated to those who gave their lives in the 1918–1920 Estonian War of Independence took place in Võru, which culminated in a conflict with the militia. For the first time in years, the blue, black, and white national tricolor was publicly displayed.
What was being protested in Estonia?
new phosphate mines