In international relations theory, a small power (or small state) is typically defined by its limited capacity to project military, economic, or political power beyond its borders, and by its inability to unilaterally shape international outcomes. There is no universally accepted threshold — scholars variously use population, GDP, military spending, or perceived influence — but the category is generally contrasted with great powers and middle powers.
Small powers tend to share several behavioral patterns identified in the literature (notably by Robert Keohane, who in a 1969 article distinguished system-determining, system-influencing, system-affecting, and system-ineffectual states). They typically:
- Prioritize multilateral institutions and international law, which constrain stronger states and amplify smaller voices through one-state-one-vote rules.
- Engage in coalition-building, such as the Alliance of Small Island States (AOSIS), the Caribbean Community (CARICOM), or the Forum of Small States (FOSS) at the UN.
- Pursue niche diplomacy — concentrating resources on specific issues like climate, disarmament, or human rights — rather than broad foreign-policy agendas.
- Often adopt neutrality, non-alignment, or hedging strategies between larger powers.
In Model UN, the "small power" label is useful for understanding why certain delegations behave as they do. Delegates representing states like Liechtenstein, Tuvalu, Bhutan, or Singapore often rely on procedural skill, moral authority, and bloc membership rather than threats or material inducements. Small powers were instrumental in the negotiations leading to the Rome Statute of the International Criminal Court (1998) and the Treaty on the Prohibition of Nuclear Weapons (2017), both adopted despite great-power opposition.
The concept is contested. Critics argue "smallness" is relative and contextual — Singapore is small by population but a financial heavyweight, while a state may be small globally yet a regional power. Constructivist scholars also emphasize that small-state identity is partly self-perceived and strategically performed.
Example
In 2017, small powers led by Costa Rica, Austria, and Ireland drove the adoption of the Treaty on the Prohibition of Nuclear Weapons at the UN despite opposition from all nine nuclear-armed states.
Frequently asked questions
Middle powers (e.g., Canada, Australia, South Korea) have meaningful regional influence and significant economic or military weight, while small powers lack the capacity to independently shape outcomes and rely more heavily on institutions and coalitions.
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