President Obama called for unity in America during a live-streamed speech on July 12 after the deadly shooting of police officers in Dallas.
Obama visited the city five days after a deadly sniper attack killed five officers during a protest against police shootings. Seven other officers were injured, as well as two civilians.
The president spoke at an interfaith memorial service at the Morton H. Meyerson Symphony Center in front of families of the fallen police officers and members of the Dallas community.
Michelle Obama, Vice President Joe Biden and wife Jill Biden, along with former President George W. Bush and former First Lady Laura Bush, were also in attendance.

US Vice President Joe Biden (2nd-L), Jill Biden(L) and former US president George W. Bush (R) and former first lady Laura Bush attend an interfaith memorial service for the victims of the Dallas police shooting in Dallas, on July 12, 2016. Mandel Ngan/AFP/Getty Images