WW3 is happening in the digital space right now. Data (and data manipulation) is the most valuable asset, this is why there is so much effort put in development of cyber security and hacking from governments. Every strategic point nowadays is controlled by computer. What countries are fighting for is economic domination. The main 2 competitors in the warfare space are Russia and the US. But again they have turned this into business, I don't expect any bombings, armies invading any of the1st world countries.
The economic pressure, is what enslaves us. If people are dead there is no one to roll the hamster wheel and keep the cash flow running.