sentence: Nuclear bombs are much more powerful than other kinds of bombs.
sentences_before: The United States and the Allies were fighting against Japan and slowly winning. Two nuclear bombs were dropped, one on the city of Hiroshima and one on the city of Nagasaki. U.S. President Harry S. Truman ordered these attacks on August 6 and 9, 1945. The atomic bombs had been created through the Manhattan Project.
concept_name: nuclear bomb
headings: Atomic bombings of Hiroshima and Nagasaki
categories: Nuclear weapons Hiroshima Nagasaki