Yonas Tadesse/AFP/Getty Images Tue 20 Feb 2018 09.00 GMT

The Addis Ababa massacre or Graziani massacre, in which 20,000 to 30,000 Ethiopians were killed by Italian occupying forces on 19 February 1937, is commemorated at the Holy Trinity Cathedral in the Ethiopian capital

Two Ethiopian war veterans sporting military regalia walk down a path during a memorial service in Addis Ababa commemorating the massacre

Ethiopian war veterans sporting military regalia attend the memorial service

Ethiopian war veterans and priests at the memorial service at the Kidist Selassie, or Holy Trinity Cathedral, a cathedral of the Ethiopian Orthodox Tewahedo church

An Ethiopian war veteran walks to the memorial service for the civilians massacred in reprisal for an attempt to assassinate Rodolfo Graziani, the colonial governor of Italian East Africa

A priest blesses war veterans

Marshal Rodolfo Graziani was one of Benito Mussolini’s commanders in the Italian colonial wars in Libya and Ethiopia before and during the second world war. He ordered the three-day massacre after an attempt on his life

Photograph: SeM/UIG via Getty Images

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