The Battle of Coatit was fought on 13 January 1895 between Italy and Ethiopian proxies led by Tigrayan warlord Ras Mengesha Yohannes in what is now Eritrea. It was the opening battle of the First Italo–Ethiopian War, and was a significant victory for the Italians, as they rebuffed an invasion force.

Pietro Toselli was a major of the Royal Italian Army. He is mainly known for his participation in the First Italo-Ethiopian War. He was born in Peveragno in 1856, the youngest of three siblings. His father was Giovanni Maria Toselli, and his mother Teresa (Botasso) Toselli. His older brother Enrico Toselli was a noted psychiatrist and university professor. Pietro Toselli joined the army at a young age and was commissioned second lieutenant of artillery in 1878. After finishing the tree year curriculum for artillerymen he opted for additional training in military engineering. After finishing his education in 1880 he became a first lieutenant. In 1887 he was promoted to captain. He first came to Africa in 1888 to carry out topographical work in the new colony of Italian Eritrea. Returning to Italy he published the book Pro Africa italica under the pseudonym "Un Eritreo". In 1894 he returned to Italian Eritrea to take command of the 4th Askari Battalion of the Corpo Speciale per L'Africa. He led Italian forces to victory at the Battle of Halai on the 18 December 1894, when his troops defeated the Eritrean forces of Batha Agos, who were besieging the Italian fort at Halai. On the 13 January 1895, he commanded the 4th Askari Battalion at the Battle of Coatit under the command of Oreste Baratieri. After the Ethiopian retreat Toselli, and the 4th Askari Battalion formed the Italian vanguard that caught up with the Ethiopian forces at the Battle of Senafe.