Menelik II, Emperor of Ethiopia, signs the Treaty of Wuchale, giving Italy control over Eritrea.

Menelik II, baptised as Sahle Maryam was king of Shewa from 1866 to 1889 and Emperor of Ethiopia from 1889 to his death in 1913. At the height of his internal power and external prestige, the process of territorial expansion and creation of the modern empire-state was largely completed by 1898.

Ethiopia, officially the Federal Democratic Republic of Ethiopia, is a landlocked country located in the Horn of Africa region of East Africa. It shares borders with Eritrea to the north, Djibouti to the northeast, Somalia to the east, Kenya to the south, South Sudan to the west, and Sudan to the northwest. Ethiopia covers a land area of 1,104,300 square kilometres (426,400 sq mi). As of 2024, it has around 128 million inhabitants, making it the thirteenth-most populous country in the world, the second-most populous in Africa after Nigeria, and the most populous landlocked country on Earth. The national capital and largest city, Addis Ababa, lies several kilometres west of the East African Rift that splits the country into the African and Somali tectonic plates.

The Treaty of Wuchale was a treaty signed between the Ethiopian Empire and the Kingdom of Italy. The signing parties were King Menelik II of Shewa, acting as Emperor of Ethiopia, and Count Pietro Antonelli representing Italy, on 2 May 1889, established the treaty after the Italian occupation of Eritrea. It was signed in the small Ethiopian town of Wuchale, from which the treaty got its name. The purpose of the treaty was to promote friendship and trade among the two countries. It was a treaty to maintain a positive long-lasting relationship between the two empires. The treaty has twenty articles written in two languages, Amharic and Italian; however, there were marked differences in the Italian and the Amharic versions of the treaty, which created miscommunications between the two countries. Specifically, Article 17 of the treaty was translated and interpreted differently by Ethiopia and Italy. Italy claimed the article imposed a protectorate over Ethiopia, while Ethiopia claimed the article allowed international diplomacy to be conducted through Italy by choice. When Menelik II denounced the treaty in 1893, Italy attempted to forcefully impose the protectorate over Ethiopia in the First Italo-Ethiopian War, which ended with Italy's defeat at the Battle of Adwa and the resulting Treaty of Addis Ababa.