Who is fritz vincken?

You mean, who was Fritz Vincken. He died in Dec. 2008 in Kapalama, Oregon. He was a bakery owner in Honolulu, carrying on the tradition of his father. When he was a 12-year-old boy in 1944 in Germany, during the Battle of the Bulge, he witnessed several soldiers from both the German and American sides come together and have a peaceful Christmas dinner on the 24th of December. This happened at a home in the woods where he lived with his mother. The soldiers also slept the night peacefully in the home, before going out the next day to find their respective units and resume the battle again. An interview of Vincken is found in the third reference for more information.