^ Saudi part was quite easy, offering someone a lot of money for giving what they already have plenty of, is not really a shocker. I have no clue how sustainable Saudi Arabia will be in the future after their oil runs out, but I do not think that's anytime soon, so they are probably trying to figure out a way, and all these extra money helps.
I disagree with armed conflict though, stuff like Russia vs Ukraine, or Israel vs Palestine, or Saudi vs Yemen, are all huge nations vs small tiny nations, the biggest weak nation there is Ukraine, and even they are hanging in there all thanks to European and American help, if nobody helped them, it would be over in a month and Russia would have taken any part of Ukraine they wanted.
Maybe China would attack Taiwan too, that's another huge nation vs tiny one. But, I do not see a world war three type of big deal. We have nuclear weapons now, so a world war three is impossible, if anything gets too serious, then some maniac will shoot their nukes, and we will all be gone.