World War 3 could be one of the more immediate threats. If WW3 does happen then it's very likely it will involve some level of nuclear weaponry
Well I wish there is no World War 3. But I guess the new war will be mostly in the form of trade war and cyber war.
Countries attacking others electric grid system, bringing them down and
or cyber was is already on between the usa, russia and china.
This is the new form of war and this is ongoing.