But why? They were already on good relations with the West, and surrounded by British territory. Besides, any German investment, especially military buildup, will not go unnoticed and is easily matched by the Allies. I don’t think even Hitler would consider it a worthwhile use of resources. I can see him trying to convince the Saudis to join during the war for cavalry raids and what not, but I don’t think the Saudis are dumb enough to do so.Is there any way we could fix those problems before the war? Like giving them better industry from Axis funding?