William Joyce, an American-born Englishman, became notorious for his role as a radio broadcaster during World War II, where he served as a voice for Nazi Germany under the pseudonym 'Lord Haw-Haw'. Operating from Berlin, Joyce delivered broadcasts aimed at British and American audiences, promoting German propaganda and attempting to undermine morale during the conflict. The broadcasts contained a mix of news, insults, and messages laced with sarcasm targeted at British political leadership and military efforts. He became a symbol of treachery for those in Britain, as he was perceived as a traitor broadcasting from enemy territory and capitalizing on the war's turmoil. Following the war's end in Europe, Joyce was apprehended and charged with high treason by the British government. His case marked one of the first significant post-war treason prosecutions, as the nation grappled with the ramifications of those who had actively supported the enemy. The trial was heavily publicized, drawing attention to issues surrounding loyalty, propaganda, and accountability for actions committed during wartime. Joyce's defense claimed he was merely expressing free speech, but the courts did not accept this argument given the context and consequences of his broadcasts. Ultimately, he was found guilty and executed, becoming a controversial figure associated with the war and its propaganda efforts.