The Balkan wars led to a further inconsistency in U.S. policy. … America asked Europe to carry more of the defense burden, and then grew resentful wh… - Charles A. Kupchan

Far from paving the way for a halcyon future of prosperity and stability, the digital era promises to usher in as profound a political and social transformation as that wrought by the arrival of the industrial age.

The Europeans are … making a choice that will inevitably give Europe more geopolitical clout—at the expense of American primacy. … And the impetus will come not just from Europe's new ambition, which will gather slowly, but also from America's domestic politics and its schizophrenic reaction to the rise of Europe.

Satisfied powers are those that have reached the top of the pecking order, are happy with their lot, and are primarily interested in preserving the status quo. In contrast, rising powers are states on the move. They are not satisfied with their lot, are usually struggling for recognition and influence, and are therefore looking for ways to overturn the status quo. In general terms, satisfied states extend commitments abroad when they must, not when they can. They are motivated by necessity rather than opportunity. Rising states extend commitments abroad when they can, not when they must. They are motivated by opportunity rather than necessity.