theorypedia
← Back to feed

Welcome to the New Defense-Dominant World - Foreign Policy

foreignpolicy.com

Military power is proving less effective on modern battlefields, and an old theory about defense beating offense may be staging a comeback.

Offense-Defense TheoryBalance of PowerDeterrence TheoryRealism
Welcome to the New Defense-Dominant World - Foreign Policy

Theory Briefing

  • The article argues that military force is delivering diminishing returns, reviving a classic debate in international relations theory.
  • Defense-dominance theory holds that when holding territory is easier than taking it, wars become costlier and less decisive for aggressors.
  • A shift toward defense-dominant conditions would reshape how states calculate the risks of launching conflicts or projecting power abroad.
  • The piece frames current battlefield trends as evidence that offensive military strategies are losing their historic edge.