Sudan conflict: What are other countries' interests? | DW News (youtube.com)
Gold and minerals, agricultural land, regional security, might appeal to UAE's imperial ambitions to intervene.
Both sides have sanctions against them and can't easily get weapons, so depend almost entirely on external sources of weapons ('support' or ‘finances’). Both are exploiting gold and smuggling it out. Both have established strong war economies.
‘A war for gold?’