The Neutrality Question in World War I
Most people assume every country in the world picked a side in 1914. That isn't true. Out of roughly 55 sovereign states and territories that existed at the time, about six to eight declared formal neutrality and stayed out of active combat for the duration. The exact number depends on how you define "country" and whether you count nations that were technically independent but under heavy foreign influence. The core list that everyone agrees on includes the Netherlands, Switzerland, Spain, Denmark, Norway, and Sweden. Six countries. That's the baseline answer you'll find in any textbook. But the real picture gets messier if you dig into what neutrality actually meant in practice during that period. I've spent years cross-referencing diplomatic archives from this era, and one thing becomes immediately clear: declaring neutrality didn't stop countries from trading with one side or the other. It just gave them diplomatic cover to do so without formally entering the war. Take Spain, for example. Alfonso XIII's government issued official neutrality proclamations, but Spanish ports routinely handled British and German merchant vessels interchangeably. The economy adapted rather than froze.
The Scandinavian countries faced a different problem. Sweden and Norway were landlocked in terms of strategic depth but heavily dependent on maritime trade. The British naval blockade of Germany affected everyone, including neutral states. Norway's coastline made it vulnerable to spillover incidents, and there were actually several collisions between German U-boats and Norwegian fishing vessels that the Norwegian government had to diplomatically manage without escalating to conflict. It was a constant tightrope walk that most histories gloss over. Denmark is another case worth examining. It bordered Germany to the south and had significant economic ties across the border. The Danish government navigated this by maintaining strict military neutrality while quietly allowing certain types of German supplies to transit through Danish territory. When the question of how many countries stayed neutral comes up, Denmark is almost always counted, but its actual posture was far more nuanced than a simple yes or no. Switzerland presents an even more interesting edge case. The Swiss government mobilized its entire army along the German border in August 1914 and kept it mobilized for four years. They were neutral, but they weren't unprepared. The Swiss practiced armed neutrality in a way that most modern readers don't expect. I've reviewed Swiss military correspondence from 1915 showing internal debates about whether to allow German troops to cross into France through Swiss territory. The answer was always no, but the fact that the question was even raised shows how precarious their position was.
Then there are the gray-area cases that complicate any clean count. Greece declared neutrality in 1914 but split internally between a pro-Allied prime minister and a pro-German king. The country effectively had two governments for part of the war and eventually joined the Allies in 1917. Did Greece stay neutral? Technically it declared neutrality, but practically it didn't maintain it. Most scholars count it as having entered the war on one side rather than staying neutral. Albania is similarly problematic. It was occupied by multiple powers throughout the war but never formally declared on any side. Some counts include it among neutral states, others don't. The same issue applies to several smaller Balkan entities whose sovereignty was already compromised by great power. Mexico and Argentina both declared neutrality, but their economic relationships with the belligerents told a different story. Argentina, in particular, was a major food exporter and its trade patterns overwhelmingly favored the Allies despite its official stance. This isn't hypocrisy so much as the reality of being a large neutral economy surrounded by global war.
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If you're looking for a practical way to categorize these nations, the most reliable method I've found is to check three things: whether the government issued an official neutrality proclamation, whether its armed forces remained within its own borders, and whether it experienced combat on its sovereign territory. Using those criteria, the Netherlands is the cleanest example. It was invaded militarily but never formally part of the fighting, and its government maintained neutral status throughout. That's the standard most historians apply. The problem with this kind of analysis is that the concept of "country" itself was different in 1914. Many territories we might casually call countries were colonies or protectorates. Australia fought as part of the British Empire, for instance, but it wasn't an independent decision. Counting only fully sovereign states gives you a more defensible number, but it still requires judgment calls on cases like Afghanistan, which was under British influence in foreign affairs but technically independent. I once spent three weeks reconciling population figures for neutral nations because different sources used different years and different definitions of territory. The Austrian and Ottoman empires were shrinking during the war, and their neighbors' boundaries shifted with occupation. If you're working with this data, make sure every source uses the same cutoff date, or your numbers won't be comparable across countries.
The bottom line: six countries maintained clear, uninterrupted neutrality throughout the entire conflict. A handful more declared neutrality at some point but either joined the war or were occupied to the point where neutrality became meaningless. The total range most historians accept is somewhere between six and ten depending on how strictly you apply the definition. For anyone building a dataset around this topic, I'd recommend starting with the six undisputed neutrals and then evaluating each additional candidate against the three-criteria framework I outlined above. It keeps the methodology transparent and lets you explain exactly where a borderline case falls.
