1. Igbo land is within the Eastern and Southeastern area of Nigeria. As per pre colonial conflicts, not too sure I'm aware of.
2. Since independence primarily Hausa and Yoruba at the federal level (President/Head of State, Ministerial positions etc).
3. Igbos are generally seen to be 'money hungry' and 'cheats'. Some will recognize that Igbos are very industrious and tend to be some of the better educated in Nigeria (a few days ago it was announced that Igbo states scored highest amongst other states in Nigeria on the WASSCE exam (West African Secondary School Exam essentially the exam you take to graduate high school)
4. This one is a dicey answer and could be a full on book. It's hard to give an answer if you don't understand the politics of that time. And also, this answer differs depending on you who ask.
Long story short.
Nigeria was broken into 3 political zones, like mega states almost. North, West, East. Hausa to the North, Yoruba to the West and Igbo to the south. There was a coup where the leaders of other zones except the East were killed, so soon after the military started to slaughter Igbo people without remorse. Later, the leader of the East, Ojukwu, said that if Nigeria will not protect we the Igbos then we don't want to be part of this country anymore. So he separated. Civil war broke and eventually Nigeria won.
Now, some people will say, Ojukwu, who was an Igbo, saw that Oil and Natural Gas was recently discovered in the East and wanted to take all the Oil for himself and that is why he seceded.
The latter explanation will usually what is touted.
5. The resurgence has been brewing for many years based on the political representation of the country. Like the US, Nigeria is a federal system in that yes, there is a national government, but the states and even counties have a lot of capacity to govern themselves. However, many jurisdictions and responsibilities that should be left to state and local governments have been assumed by the federal government.
Example. Take ports for example. Very important for trade in the modern day. There are areas in South eastern Nigeria that could serve as some of the biggest ports in the country if they were allowed to build their own ports. So essentially, the Federal government takes responsibility of things that State governments should do, and then in turn, does nothing about it. In effect, leading to little to no development.
Additionally, there were killings of Igbos by Hausa/Fulani heardsman (cattle rearers) that went largely unpunished. That and the fact that the political system is stacked against the Igbos. There's a lot of stuff man.
6. The largest diaspora groups outside of Nigeria of Igbos are pretty much in line with the rest of the diaspora Nigerian population. The biggest: the UK, the US (particularly Dallas and Houston, but also NYC area, the DC and Baltimore region, ATL, Chicago), Toronto (these are usually younger people though under 35). Other notable diasporas are in Ghana, Malaysia, South Africa, Australia, the EU, Dubai.
As per what they are doing...idk man
Hope this helps. Not as comprehensive or as well written as I would have liked but just wanted to give you an idea of what's going on.
), Falana, Fayose etc.
