What country was often called in western countries a "hermit kingdom" over the later part of the 16th to the beginning of the 20th centuries?
Which English king destroyed over 60% of the people and economy of his kingdom, in a campaign called "the harrying of the north"?
World War I was triggered as a full-blown war when the United Kingdom declared war on Germany on 4 August 1914, when Germany invaded which country?
