In the days following the fatal shootings of two black men by police officers, protests turned violent in Dallas, Texas when snipers killed 5 police officers and wounded 6 more — the deadliest attack on officers since the terrorist attacks on September 11, 2001.
Though violent protests and unrest have followed high-profile police brutality cases in the last two years.
Rioters plunged part of Baltimore into chaos, torching a pharmacy, setting police cars ablaze and throwing bricks at officers just hours after the funeral of 25-year-old Freddie Gray, a black man who died from a mysterious spinal injury sustained while in police custody in April 2015.
The governor of Maryland declared a state of emergency — the National Guard was called into the city to combat violence, a curfew was instated. Six police officers were wounded in the unrest that involved breaking store windows and setting a pharmacy on fire.
The death of Michael Brown at the hands of police officers in Ferguson, Missouri also prompted unrest throughout the city. Protests lasting more than two weeks were also met with National Guard troops as well as tear gas and rubber bullets. Six police officers were also wounded in these clashes.