When you have the countries ...

When you have the countries like Germany, China, and Russia decline, and be replaced by others, that's when systemic wars start. That's when it gets dangerous, because they haven't yet reached a balance. So Germany united in 1871 and all hell broke loose. Japan rose in the early 20th century, and then you had chaos. So we're looking at a systemic shift. Be ready for war.
 George Friedman

Quotes from the same author

The warrior must continue to make decisions in the face of extreme circumstances. He cannot afford to get angry or frightened.
 George Friedman
There has never been a century that has not had a systemic war - a systemic war, meaning when the entire system convulses. From the Seven Years' War in Europe to the Napoleonic Wars of the 19th century to the World Wars, every century has one.
 George Friedman
Assad's mother was a terror. He was terrified of her and she kept saying to him, you're not like your father. That's interesting, but it's useless information. It doesn't tell me anything about how the first and second armored brigades are going to operate.
 George Friedman
By the 20th century, war ceased to be an encounter between two armies. It became an encounter between two societies, because a factory worker producing a gun or a bomb is as deadly as a pilot.
 George Friedman
Well what are our geopolitical objectives? First, that North America be peaceful, prosperous, dominated by the United States. Second, that no nation be able to approach the United States militarily ... Those are the goals. It's very simple. We achieve that by making certain that all conflict takes place in the Eastern Hemisphere so we don't have conflict here.
 George Friedman