Complex sentence: On 9 May 1936, Italian dictator Benito Mussolini proclaimed his "Africa Orientale Italiana" (AOI, Italian East African Empire), formed from the newly occupied Ethiopia and the colonies of Italian Eritrea and Italian Somaliland.
Split into simpler sentences: On 9 May 1936, Italian dictator Benito Mussolini proclaimed his "Italian East African Empire" ("Africa Orientale Italiana", AOI). The empire was formed from the newly occupied Ethiopia and the Italian colonies of Eritrea and Italian Somaliland.