HMS Indefatigable was a British battlecruiser launched in 1909. Designed for speed and firepower, she was part of the Royal Navy and played a significant role during World War I. The ship was equipped with large-caliber guns and had a top speed of around 25 knots, making her one of the fastest ships of her time. During the Battle of Jutland in 1916, HMS Indefatigable engaged enemy forces but was tragically sunk after being hit by a shell. The loss of the ship resulted in the deaths of over 1,000 crew members, marking a significant moment in naval history.