Eighty-four years ago today, on December 6, 1941 (October 18, 1941), Britain declared war on Finland, Romania, and Hungary. On December 6, 1941, Britain declared war on Finland, Romania, and Hungary, owing to their failure to respond satisfactorily to Britain's ultimatum a week earlier to end its hostility to the Soviet Union. Romania and Hungary were puppets of the Axis powers, while the situation in Finland was different because it had long fought for independence and maintained friendly relations with the United States. However, after entering Finland eight days before the German invasion of the Soviet Union in June, Britain extended the blockade to Finland. By July, diplomatic relations were also severed. Due to the Soviet Union's repeated demands for Britain to declare war on Finland, the British government warned Finland that it would be considered an enemy of Britain if it continued to be hostile to the Soviet Union. Although the Soviet Union had effectively withdrawn from Finland by that week, this hostility had ceased to exist. On November 25, Finland signed an anti-communist international treaty with Romania, Hungary, and other countries in Berlin, which led to the British issuing an ultimatum to Finland.