The Ethiopian resistance against Italy was successful for several reasons. First, Emperor Haile Selassie mobilized a large, well-trained, and motivated army to defend Ethiopia against the Italian invasion. Second, the Ethiopian terrain, which included mountainous and jungle areas, made it difficult for the Italian army to advance and maintain supply lines. Third, Ethiopia received international support, particularly from the League of Nations, which condemned Italy's aggression and imposed economic sanctions on the country. Fourth, the Ethiopian army also employed guerrilla tactics, which disrupted Italian supply lines and demoralized their troops. Finally, the Ethiopian people had a strong sense of national identity and were united in their determination to resist Italian colonization.