Any good books on 20th century Ethiopian and Somali history?

Currently reading Know Your Enemy: The Rise and Fall of America's Soviet Experts by David C. Engerman (2009). It looks at the development of Soviet studies in the US, which started at the end of the Second World War and lasted until the end of the Soviet Union in 1991. Only about a third of the way through now, but it looks quite interesting.

So SLA Marshall's Men Against Fire is well-known in certain circles, most especially its claims about how many soldiers actually fire their weapons. Marshall's claims have been tossed out the window on grounds of his methodological problems ('he made it up' and 'he cherry-picked evidence to fit his premise' are indeed serious methodological problems), but we have less data that addresses Marshall's conclusions.

Thus we come to Canadians Under Fire: Infantry Effectiveness in the Second World War by Robert Engen of 2009. Engen specifically set out to get some primary source data that could "corroborate, challenge, or merely problematize" Marshall's claims, and found them in a compilation of battle experience questionnaires sent to Canadian officers who had served in Italy and Northwest Europe, sent and filled out not very long after these officers had departed the front in 1944-1945. A most interesting read overall, and useful to anyone who needs some handy material to counter a Marshall claim with, if the need should arise.

If you asked me what I thought about Ramsay MacDonald I'd say that he was a traitor who betrayed the Labour Party and his own socialist principles to cling on to power. But this is clearly a very reductive and biased opinion - can anyone recommend any books on MacDonald or the formation of the 1931 National Government that portray him more sympathetically?

Any good books on Latin American dictatorships?

Is there anything medieval similar to the Canterbury tales?

I’ve read chrétien de Troyes, Marie de France, Beowulf, and sir Gawain, but nothing came close to how fun, diverse and interesting the Canterbury tales are. The tales are also the most interesting to read from a scholarly perspective as they are often rooted more in real life than the others I mentioned.

Are there any recommendations on a general history of the post-World War 2 occupation of what would become West Germany, or of Germany overall? I'm mostly interested in the mechanics of occupation, like who made decisions on what and how, how Allied decisions were enforced, how governmental systems were set up, and the like.