The dual topic idea is good imo and I welcome the improvements to the site.
Buried content can be a problem, personally I dont think that the mainpage is too long and extra forums could be added to reduce buried content and help refine thread location and also encourage debate in areas that receive less coverage, that is if the there are suitable ideas for additional forum/s (or dual).•Many Forums (mainpage length) vs. Many Subforums (buried content)
I think science and tech may be worthy of its own forum considering the influence these areas have on shaping our world, policies and potential - past, present and future, although I understand that some people may feel this would result in a loss of sight of the main focus, world affairs (political and military).
It does seem a difficult challenge incorporating all of the geography, and that some regions will end up in miscellanous seems unavoidable, such as India, Brazil or western Europe, important regions, but where do they go on the main forum page?
perhaps globalisation, UN etc is worthy of its own forum or sub forum or perhaps that is creating unnecessary overlap, just brainstorming...