The Tiananmen Square protests, commonly known in mainland China as the June Fourth Incident (Chinese: 六四事件, liùsì shìjiàn) or Six four, were student-led demonstrations in Beijing in mid-1989. More broadly, it refers to the popular national movement inspired by the Beijing protests during that period, sometimes called the '89 Democracy Movement (Chinese: 八九民运, bājiǔ mínyùn). The protests were forcibly suppressed after the government declared martial law and sent in the military to occupy central parts of Beijing. In what became known as the Tiananmen Square Massacre, troops with assault rifles and tanks fired at the demonstrators trying to block the military's advance towards Tiananmen Square. Estimates of the death casualties vary from 300 persons up to 2,600.[3][4][5][2][6][7]