Then he was declared insane and put in a mental institution.

As war in Europe drew near, Pound returned home (1939) in the hope that he could help keep the peace between Italy and the United States. He went back to Italy a disappointed man, and between 1941 and 1943, after Italy and the United States were at war, he made several hundred broadcasts over Rome Radio on subjects ranging from James Joyce to the control of money and the U.S. government by Jewish bankers and often openly condemned the American war effort. He was arrested by U.S. forces in 1945 and spent six months in a prison camp for army criminals near Pisa. Despite harsh conditions there, he translated Confucius into English (The Great Digest & Unwobbling Pivot, 1951) and wrote The Pisan Cantos (1948), the most moving section of his long poem-in-progress. Returned to the United States to face trial for treason, he was pronounced “insane and mentally unfit for trial” by a panel of doctors and spent 12 years (1946–58) in Saint Elizabeth’s Hospital for the criminally insane in Washington, D.C.