USCGC Northland WWII
MyCG has the best short history of the Greenland Patrol I have ever seen. It explains the crucial importance of this apparently minor theater of WWII. I have also added a link to the story on my heritage page.
“The Long Blue line: Greenland—Coast Guard’s Arctic combat zone of World War II, 1940-41” –MyCG
Chuck Hill's CG Blog 