1) Italy wanted to build an empire to secure resources due to the Great Depression, and Mussolini wanted to revive Rome's glory. 2) There was a border dispute between Abyssinia and Italian Somaliland which led to a small skirmish. Mussolini demanded an apology and threatened invasion. 3) In 1935, a League commission suggested giving part of Abyssinia to Italy, but Mussolini rejected the plan and invaded later that year using tanks and flamethrowers. The League imposed weak sanctions but did not cut off crucial oil.