Abyssinia Crisis whether from the internal or the international point of view. The Italo–Ethiopian Treaty of 1928 stated that the border between Italian Somaliland and Ethiopia was twenty-one leagues from and parallel to the Benadir coast (approximately ). In 1930, Italy built a fort at the Walwal oasis (also Welwel, Italian: Ual-Ual) in the Ogaden, well beyond the twenty-one league limit. The fort was in a boundary zone between the nations, which was not well defined; today it is about inside Ethiopia. On 29 September 1934, Italy and Abyssinia released a joint statement renouncing any aggression against each other. On 22 November
Abyssinia, Henry production of this episode, both Stevenson and Wayne Rogers, who played the character of Trapper John McIntyre, left the series to pursue other interests. While Stevenson's departure was announced prior to and written into "Abyssinia, Henry", Rogers unexpectedly left the series during the break between Seasons Three and Four, and so his character's departure takes place off-screen in the following episode, "Welcome to Korea", the first of the show's fourth season. These combined departures and their subsequent replacements also signaled the beginning of a major shift in focus of the "M*A*S*H" series as a whole with story and script focus