Buchenwald concentration camp
When the Nazis captured soldiers from Western Allied countries, they almost always sent them to prisoner of war camps, not concentration camps.  However, they did keep a group of 168 airmen (flyers) at Buchenwald for two months. These men were from the United States, the United Kingdom, Canada, Australia, New Zealand, and Jamaica.  They got to Buchenwald on August 20, 1944.Eyewitness accounts of Art Kinnis, president of KLB (Konzentrationslager Buchenwald), and 2nd Lt. Joseph Moser, one of the surviving pilots, at http://buchenwaldflyboy.wordpress.com.