I’ll no doubt be proven wrong but TBH I can’t see the dynamic duo wanting to go through one of the major airports (e.g. Abuja or Lagos), let alone venture out onto the adjacent roads.
Given the context of the invite (from the military, Invictus etc) one plan might be for them to bizjet directly into somewhere like Kaduna, where the Nigerian Military Academy is based with all it’s associated sporting facilities etc. They could hunker down there, well protected, and have the cultural events brought to them…
As a bonus I see Wiki even reckons there’s a local polo team…………