I want to know the answer to the following question:
Who attacked the protest?
All the background I'm provided with is that "On October 1, 1989, a peaceful demonstration of 10,000 to 15,000 people was violently dispersed by the militia in front of Lviv's Druzhba Stadium, where a concert celebrating the Soviet "reunification" of Ukrainian lands was being held.". Is that enough to answer the question?
Answer: yes