Georgians hold candles during a remembrance ceremony in Gori, west of Georgia’s capital, Tbilisi, a year after the August 2008 war between Georgia and Russia over the breakaway region of South Ossetia.

Clockwise, from top left: Georgians hold candles during a remembrance ceremony in Gori, west of Georgia’s capital, Tbilisi, a year after the August 2008 war between Georgia and Russia over the breakaway region of South Ossetia. / Relatives hold pictures of their beloved during a March 6, 2009 march in Bogota against the “false positive” killings and enforced disappearances allegedly carried out by Colombian authorities between 2002 and 2008. / People hold a banner reading “We will never forget the dead, the missing, the wounded and the raped women of September 28, 2009” in Guinea’s capital, Conakry on September 28, 2016, marking the seventh anniversary of the Guinean security forces attack on a peaceful demonstration at a stadium that left 150 people dead and dozens of women raped. / Daoud Mousa, father of Baha Mousa who died in 2003 at the age of 26 while in the custody of British soldiers in Iraq, shows photographs of his son and family to the media as he arrives at a July 28, 2004 London court hearing on human rights violations in Iraq. 

© 2008 David Mdzinarishvili/Reuters / © 2009 MAURICIO DUENAS/AFP/Getty Images / © 2016 CELLOU BINANI/AFP/Getty Images / © 2004 Graeme Robertson/Getty Images