By Charles Wyatt (Minesite) - Not very often we start a mining article with a combined geography/history lesson, but in this case the only way to make sense of the recent moves by a number of mining companies into Eritrea is to understand exactly where the country is, what surrounds it, and what has been going on there. The region is described loosely as the Horn of Africa but a close look at a map shows that the real Horn juts out south of Djibouti into the Gulf of Aden and largely consists…