How I view the ramifications of Deus's conquest: while the invaded country probably has no resources to stop him, there are always bigger fishes in the sea. Typically, nations are not remote islands, so there are political connections and stronger countries in a given place have an informal area of influence comprising of less fortunate countries. So if this fictional Mozambique is weak, they are most likely under an influence of a stronger state, which would obviously take offence in someone taking what they view as theirs. The key question is, what they can do about the situation? If they do not have enough power to stop Deus they need to find allies; as I said, there are always bigger fish in the sea. The top-tier superpower countries are often thinking globally, so there should be someone particularly interested in expanding their influence over fictional Africa. While open invasion of Deus's country would not be possible as it would make all the other superpowers upset, someone asking for help gives a good opportunity to seize control of all that alien technology indirectly - taking in the Alari refugees was both a great opportunity for Deus and great danger as the technology they bring is a juicy prize for pretty much everyone - countries, corporations, international mobs etc.