The neutrality doctrine refers to the legal and political principles governing the status of a state that chooses not to take part in a war between other states. It imposes reciprocal obligations: the neutral abstains from supporting any belligerent, and belligerents must respect the neutral's territory, shipping, and citizens.
The modern legal framework was codified at the Second Hague Peace Conference of 1907, principally in Hague Convention V (rights and duties of neutral powers in land war) and Hague Convention XIII (the same in naval war). Core obligations on the neutral include:
- Abstention from sending troops, arms, or war materiel to belligerents.
- Prevention of belligerent use of its territory for military operations, recruitment, or transit.
- Impartiality in any restrictions it imposes on trade or transit.
In return, the neutral's territorial integrity is inviolable, and its merchant shipping enjoys protection subject to belligerent rights of visit, search, and seizure of contraband.
Scholars distinguish several variants. Permanent (or perpetual) neutrality is guaranteed by treaty or constitutional commitment, as with Switzerland (recognised at the Congress of Vienna in 1815) and Austria (Declaration of Neutrality, 1955). Ad hoc neutrality applies only to a specific conflict. Armed neutrality combines non-participation with credible defence capability, historically associated with Sweden and the Nordic states. Non-alignment, articulated at the Bandung Conference (1955) and the founding of the Non-Aligned Movement in Belgrade (1961), is a broader Cold War political stance rather than a strict legal status.
The doctrine has been strained by collective-security arrangements under the UN Charter (Article 2(5) and Chapter VII obligations), by EU Common Foreign and Security Policy commitments, and by hybrid and cyber operations that blur traditional thresholds. Following Russia's 2022 invasion of Ukraine, Finland (2023) and Sweden (2024) abandoned long-standing non-alignment to join NATO, illustrating the doctrine's contemporary fragility.
Example
In 2022, Switzerland aligned with EU sanctions against Russia following the invasion of Ukraine, prompting domestic debate over whether the move was compatible with its permanent neutrality dating to 1815.
Frequently asked questions
Yes, but it is constrained. Under Article 25 and Chapter VII, member states must implement binding Security Council measures, which can override traditional neutral obligations such as impartial trade.
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