It’s possible none of those would technically be WW3 by itself, perhaps the start of heavier US commitment in the first of those conflicts might be perceived as the opportunity for the others to get started. Maybe even some less obvious conflicts are merely waiting for NATO to be preoccupied (e.g. random colonies being invaded or declaring independence). The US will be forced into taking at least one L, or switching back to a war economy.
India vs Pakistan
ISIS expansion
Water Wars (multiple locations)
USA invading Mexico
Syrian Civil War
Greenland War
IDK if Denmark can defend Greenland, but NATO could article5/split
It’s possible none of those would technically be WW3 by itself, perhaps the start of heavier US commitment in the first of those conflicts might be perceived as the opportunity for the others to get started. Maybe even some less obvious conflicts are merely waiting for NATO to be preoccupied (e.g. random colonies being invaded or declaring independence). The US will be forced into taking at least one L, or switching back to a war economy.