William Joyce ("Lord Haw-Haw") is charged with treason for his pro-German propaganda broadcasting during World War II.

William Brooke Joyce, nicknamed Lord Haw-Haw, was an American-born fascist and Nazi propaganda broadcaster during the Second World War. After moving from New York to Ireland and subsequently to England, Joyce became a member of Oswald Mosley's British Union of Fascists (BUF) from 1932, before finally moving to Germany at the outset of the war where he took Nazi German citizenship in 1940.

Lord Haw-Haw was a nickname applied to William Joyce and several other people who broadcast Nazi propaganda to the United Kingdom from Germany during the Second World War. The broadcasts opened with "Germany calling, Germany calling," spoken in an affected upper-class English accent. Through such broadcasts, the Reich Ministry of Public Enlightenment and Propaganda tried to discourage and demoralise allied troops, and the British population. Although the broadcasts were known to be Nazi propaganda, they often offered the only details of Allied troops and air crews caught behind enemy lines.

Treason is the crime of attacking a state authority to which one owes allegiance. This typically includes acts such as participating in a war against one's native country, attempting to overthrow its government, spying on its military, its diplomats, its officials, or its secret services for a hostile foreign power, or attempting to kill its head of state. A person who commits treason is known in law as a traitor.

World War II or the Second World War was a global conflict between two coalitions: the Allies and the Axis powers. Nearly all of the world's countries participated, with many nations mobilising all resources in pursuit of total war. Tanks and aircraft played major roles, enabling the strategic bombing of cities and delivery of the first and only nuclear weapons ever used in war. World War II is the deadliest conflict in history, causing the death of 70 to 85 million people, more than half of whom were civilians. Millions died in genocides, including the Holocaust, and by massacres, starvation, and disease. After the Allied victory, Germany, Austria, Japan, and Korea were occupied, and German and Japanese leaders were tried for war crimes.