Soft balancing is a recent addition to balance of power theory used to describe non-military forms of balancing evident since the end of the Cold War, particularly during and after the 2003 Iraq War.
Soft balancing occurs when weaker states decide that the dominance and influence of a stronger state is unacceptable, but that the military advantage of the stronger state is so overwhelming that traditional balancing is infeasible or even impossible. In addition to overwhelming military superiority, scholars also suggest that democratic peace theory suggests a preference toward soft, rather than hard, balancing among democracies.
As opposed to traditional balancing, soft balancing is undertaken not to physically shift the balance of power but to undermine, frustrate, and increase the cost of unilateral action for the stronger state. Soft balancing is not undertaken via military effort, but via a combination of economic, diplomatic, and institutional methods.
Soft balancing is contrasted with hard balancing and bandwagoning.