During the first year of World War II, Iceland strictly enforced a position of neutrality and took action against both British and German forces that violated it. The German invasion of Denmark on 9 April 1940 and subsequent occupation severed communications between Iceland and Denmark.
Elizabeth II remained head of state as the Queen of Nigeria, as well as other dominions and commonwealth realms. Her constitutional roles in Nigeria were exercisable by the Governor-General of Nigeria. Three people held the office of governor-general during the whole existence of the Federation of Nigeria: