The Junkers Ju 87 Stuka was a German dive bomber that was used extensively during World War II. It was one of the most feared aircraft of the war, and it played a crucial role in the early victories of the Luftwaffe. The Stuka was known for its speed, maneuverability, and its distinctive siren, which was used to terrorize enemy troops. It was also equipped with a variety of other features, including a retractable landing gear and a dive brake. The Stuka was used in all theaters of war, and it was particularly effective in the invasion of Poland and the Battle of France.