World War 3 for dummies

Some knowledgeable people, apparently including the Pope, are beginning to suspect that there may be more going on in the world than just the war in the Ukraine. They say that World War 3 has already started and things will get worse from now on. This can be difficult to determine while we are participating in the unfolding events and do not have the benefit of the historical perspective. It is doubtful that people back in 1939 realized that they were looking at the start of a major worldwide conflict, although some may have suspected it.