On June 4, 1989, Chinese troops marched on protesters, many of them students, in Tiananmen Square in Beijing.

Why did this confrontation occur?
The troops were practicing military drills and the students got in the way.
The protesters wanted a more open, democratic system of government.
The students were not happy with the level of education they were receiving.
The protesters believed that their wages had been mistakenly reduced.On June 4, 1989, Chinese troops marched on protesters, many of them students, in Tiananmen Square in Beijing.

The confrontation occurred because the protesters wanted a more open, democratic system of government. The students and other demonstrators were calling for political reforms and greater freedoms, which clashed with the authoritarian regime in power at the time.