This country's attempt to join the League of Nations was rejected due to its failure to abolish slavery, which it finally accomplished in (*) 1942 under a ruler who suppressed several coups led by his mother's faction.
During a civil war in this country, an early form of modern psychological warfare involved use of three biplanes to drop leaflets saying the enemies were deemed infidels by a church leader at the Battle of Anchem. It's not in Central Europe, but regional warlords in this country made their capital at Mount Tabor. This country's attempt to join the League of Nations was rejected due to its failure to abolish slavery, which it finally accomplished in (*) 1942 under a ruler who suppressed several coups led by his mother's faction. The Christmas Offensive in this country was a brief attempt to turn back an attempt to colonize it during a war which the Hoare-Laval pact proposed to end. In the early 20th century, a civil war was fought in this country between Iyasu and Zewditu. For 10 points, name this home country of Haile Selassie.
During a civil war in this country, an early form of modern psychological warfare involved use of three biplanes to drop leaflets saying the enemies were deemed infidels by a church leader at the Battle of Anchem.
Ethiopia [or Itoppya]