European Production in WW2:
Aircraft: ~480,000 (+31,000 lend lease)
Tanks and SPGs: ~265,000 (+27,000 lend lease)
Artillery: 825,000+
Trucks: 3,000,000+ (incl. 600k lend lease)
Naval Vessels: ~40,000 (about 50/50 naval and merchant marine)
Total Mobilised Personnel: ~80 million men
There are not enough smart munitions or factories on earth in 2026 to produce enough that could defeat a combined and united force like that which manages to drag you into a long war, much less in Africa alone.
This is genuinely an interesting question, and it’s much closer than people on either side of the debate think, but Africa simply does not have the ability to self sustain in conflict beyond the early engagements (which they would easily win - it’s undeniable their comms, cutting edge tech and battle space knowledge would be levels beyond Europe of 1939) in the first weeks of such a war.
It doesn’t have the production capacity to sustain its modern armaments, it doesn’t have the organisational ability nor the logistics to bring it all together. It won’t be able to sustain its communications and technological edge for long once it runs out of spare parts and munitions and the Europeans learn and adapt (which they were incredible at). It also doesn’t have the capacity to feed or fuel itself. Those navies would absolutely choke Africa - you are forgetting that 1939 Europe includes the Soviet Union, the British Empire AND the French and Dutch Empires, between those four they can cutoff pretty much all trade globally.
Once the technological gap is reduced, infact, even when it’s not (look at conflicts in Africa *right now*) European formations will be able to do incredible damage to African formations in the field, even with large parts of their militaries consisting of bolt action rifles and horse drawn logistics.