Sweden during World War I
Sweden, following its long-standing policy of neutrality in place since the end of the Napoleonic Wars, remained neutral throughout World War I from 28 July 1914 to 11 November 1918. However, maintaining this neutrality was challenging, and at different times, Sweden expressed sympathy towards various parties involved in the conflict.
Source: Wikipedia — Sweden during World War I (CC BY-SA 4.0)