Yes Yemen is essential as is Djibouti. And as everyone knows the road to Djibouti goes through Ethiopia and Somalia. If the Sudan falls it will put Ethiopia in jeapordy. Which leads us to the linchpin of Chad. We all know how important strategically placed Chad is. If Chad goes there goes Niger along with Mali. This is a crisis and I would be glad to provide pierrem15 with a weapon and a plane ticket so he can straighten this out. Good luck.
Out of curiosity, how long do both of you think simply pretending there's no problem will work?