Norwegian traitor Vidkun Quisling (1887 - 1945) insisted on his innocence throughout his trial and all the way up to the day of his firing squad. To counter his claims in the courtroom prosecutors produced the diary of Hitler's foreign minister, Alfred Rosenberg, that clearly stated that Quisling was complicit from the very beginning in the invasion of his country. A pride of Norwegian military officers recalled the day of the Nazi attack when Quisling refused to give the mobilization order.
Click here to read an article about another European traitor: Pierre Laval.
