Battle of Adwa 1896 was between Italian forces looking to take over Ethiopia.
Explanation:
Battle of Adwa was one of the few decisive battles in which an African force soundly defeated a European one to keep their kingdom to themselves and to retain the place as their own eventually.
Ethiopia was never directly colonized and it is largely due to the outcome of this battle that it was rarely challenge afterwards.
In this battle they were helped along by the French and Russian who had business ties with Ethiopia related to the African land so they helped them against Italy who would rake in whole profits if they were to take over the country.