Final answer:
The League of Nations recognized Switzerland as absolutely neutral in May 1938. This recognition formalized Switzerland's position of neutrality that it has maintained over the years, even through World War II, unlike the Netherlands which was invaded despite declaring neutrality.
Step-by-step explanation:
In May 1938, the League of Nations recognized Switzerland as an absolutely neutral country. This acknowledgment of Swiss neutrality is a historic attribute that the country has maintained even during the tumultuous times of World War II. Despite the Netherlands and Sweden declaring their neutrality at the start of the war, the Netherlands was invaded by Germany in 1940, leading to the bombing of Rotterdam and the surrender of the Dutch government shortly thereafter. Unlike the Netherlands or Sweden, Switzerland’s neutral status was formally acknowledged by the international community and has been a cornerstone of its foreign policy.