PRESIDENT Obama's forays into history, especially Eu ropean history, are interest ing but not always accurate. Who can forget his description during the presidential campaign of African-American GIs liberating Auschwitz? (It was the Russians.) Or his admission during his recent European trip that he didn't know how to translate a certain word into Austrian? (There is no "Austrian"; Austrians speak German.) His evocation of Winston Churchill in his press conference last Wednesday took confusion to a new height. The president cited the great British prime minister in support of his ban on enhanced interrogation techniques at Gitmo and elsewhere, noting...