Great powers must be forever vigilant and never subordinate survival to any other goal, including prosperity. - John Mearsheimer

The cycle of violence will continue far into the new millennium. Hopes for peace will probably not be realized, because the great that shape the international system fear each other and compete for power as a result. Indeed, their ultimate aim is to gain a position of dominant power over others, because having dominant power is the best means to ensure one's own survival.

We invented this story that Russia was bent on aggression in Eastern Europe.... This is a story that we invented so that we could blame him (Vladimir Putin). My argument is that the West, especially the United States, is principally responsible for this disaster. But no American policymaker, and hardly anywhere in the American foreign-policy establishment, is going to want to acknowledge that line of argument, and they will say that the Russians are responsible.

Offensive realism predicts that the United States will send its army across the Atlantic when there is a potential hegemon in Europe that the local great powers cannot contain by themselves.