 Complete the following phrase:  During the Second Italo-Ethiopian War, Jijiga served for some time as Dejazmach Nasibu Emmanuals headquarters and a supply center for the Ethiopian army. An Italian force under Colonel Navarra occupied the city on the evening of 5 May 1936. Two days later, while inspecting a ruined Ethiopian Orthodox church in the city, Marshal Rodolfo Graziani fell into a concealed hole, which he was afterwards convinced was a mantrap; Anthony Mockler suggests this mishap contributed to his murderously paranoid mindset which led to 