There could be one, but it would be a book-sized answer (and probably a Tolkien one, if not more).
Every conflict is multi-faceted and happened for a variety of reason, some mattering more than other. Any conflict involving the middle east and you have to go back almost 80-years of history to really provide a satisfying answer. Control of world oil supply, trades with China, opportunistic war to appease local voter pool, diversion from problematic affairs, diplomacy with Israel (which as it own thousand fold reasons for this war), Iran being left weak after losing most of their local allied militia, internal uprising due to a economical crisis caused in part to the removal of the agreement on nuclear and the trade ban that followed ... They all probably play a part.