Neutral powers during World War II

Neutral powers during World War II were sovereign states that officially declared non-belligerency and sought to avoid military alignment with either the Allies or the Axis powers. This status, rooted in international law like the Hague Conventions of 1907, was fraught with immense pressure, covert operations, and frequent violations by the warring factions. The experiences of these nations varied dramatically, from armed neutrality and covert cooperation to outright occupation, significantly influencing the conflict's economic and intelligence landscapes.

Definition and legal status

The legal foundation for wartime neutrality was primarily established by the Hague Conventions of 1907, specifically the Hague Convention V and Hague Convention XIII. These treaties outlined the rights and duties of neutral states, obliging them to impartiality and prohibiting the provision of military resources to belligerents. In practice, the unprecedented total war of World War II, characterized by strategies like the Allied blockade and the German U-boat campaigns, rendered strict legal adherence nearly impossible. The concept of "non-belligerence," a term used by states like Fascist Italy before 1940 and Francoist Spain, often denoted political sympathy without formal military engagement, blurring the lines of traditional neutrality.

Major European neutrals

Several European nations maintained formal neutrality throughout most or all of the war, though their experiences differed sharply. Switzerland upheld a policy of armed neutrality, mobilizing its Swiss Armed Forces under General Henri Guisan and serving as a crucial center for espionage, diplomacy, and banking for both sides. Sweden, though initially conceding to German demands for iron ore transit and the transit of German troops, later became a haven for Norwegian resistance and Danish Jewish refugees. The Iberian Peninsula hosted two neutral dictatorships: Portugal under António de Oliveira Salazar, which granted the Allies access to the Azores in 1943, and Francoist Spain, which despite its ideological affinity for the Axis powers and contribution of the Blue Division to the Eastern Front, avoided full-scale entry.

Other neutral states

Beyond Europe, several states across the globe declared neutrality. In the Americas, this included Argentina (which leaned towards the Axis until 1944), Chile, and Paraguay. Turkey remained neutral until February 1945, when it symbolically declared war on Nazi Germany to secure a place at the United Nations Conference on International Organization. In Asia, Afghanistan, Yemen, and Saudi Arabia remained officially neutral, though the latter provided oil to the Allies. The Vatican City under Pope Pius XII also maintained a neutral diplomatic stance, though its role during the Holocaust remains a subject of historical debate.

Challenges and violations of neutrality

Neutrality was persistently challenged and violated by the belligerent powers. The German invasions of Denmark and Norway in Operation Weserübung were blatant violations of their neutral status. Similarly, the Soviet Union invaded the neutral Baltic states and fought the Winter War against Finland, which later aligned with Germany during the Continuation War. Switzerland faced airspace violations by both the Luftwaffe and the United States Army Air Forces, notably during the Bombing of Schaffhausen. Sweden's neutrality was compromised by the German troop transits and its interception of Soviet signals for Germany.

Economic and diplomatic roles

Neutral states played pivotal economic and diplomatic roles. Switzerland and Sweden were essential hubs for intelligence operations by the Office of Strategic Services, MI6, and the Abwehr. They also facilitated crucial trade, with Sweden supplying SKF ball bearings and iron ore, and Switzerland providing financial services and precision engineering. Portugal's neutral port of Lisbon became a famous gateway for refugees and spies, while its Wolfram exports were contested by both sides. Diplomatic missions in neutrals like Ankara and Stockholm were hotbeds of intrigue, with figures like Cicero operating in Turkey.

Post-war legacy

The post-war legacy of the neutral powers was complex. Their ability to avoid the devastation seen in nations like the Soviet Union or Poland provided a foundation for rapid post-war economic growth, as seen in the "Swedish model" and Switzerland's financial expansion. However, their wartime accommodations, particularly regarding Nazi gold and refugee policies, led to lasting moral and historical scrutiny. The war also demonstrated the declining viability of traditional neutrality in an era of ideological total war and air power, influencing the later security policies of states like Sweden during the Cold War and shaping modern international law.