This passage concerns the U.S. occupation during World War II:
At its peak, the occupation of Iceland would include the equivalent, statistically speaking, of 55 million foreign troops occupying the United States based on 1940 populations. There were nearly fifty thousand men and dozens of female nurses, equaling about 40 percent of Icelanders.
By the way, from 1940 to 1946, “the purchasing power of unskilled workers (meaning just about everyone) grew by a whopping 86 percent…” About two percent of Icelandic women left as brides to American soldiers. And while Iceland lost about 300 lives during the war (mostly sailors), American servicemen helped to add another 400-500 to the native population.
One of the major political issues in the 1970s was whether the letter “Z” should be included in the Icelandic alphabet, and indeed it was abolished by law in 1973, with an exception being made for the word “pizza.”
That is all from Egill Bjarnason, How Iceland Changed the World: The Big History of a Small Island. I’ll say it again: single country books are underrated. Maybe there are no great revelations in this one, but if you have been to Iceland, or are planning a trip, it is probably the first book you would want to pick up to cover the country.