Many people argue that the 21st century is going to repeat the 20th century, in which World War One, the great conflagration in which the European state system tore itself apart and destroyed its centrality in the world, that that was caused by the rise in the power of Germany and the fear it created in Britain.
Banyak orang beranggapan bahwa abad ke-20 akan terulang di abad ke-21 di mana Perang Dunia Pertama lautan api besar di mana sistem negara Eropa runtuh sendiri dan menghancurkan dominasinya di dunia yang disebabkan oleh kebangkitan kekuatan Jerman dan ketakutan yang terjadi di Inggris.