Mock turtle soup from the time of the personal union between the Kingdom of Hanover and the Kingdom of Great Britain. While green sea turtle was popular for soup making in many countries, U.S. recipes included many other local species. Soup made from snapping turtles is still available in parts of the country. Similarly mock turtle soup recipes have a variety of substitute meats. Beside organ meats like the British recipes, recipes in the U.S. often use stewing beef or ground beef but may call for alligator. The Campbell Soup Company once produced canned mock turtle soup made of calf's head. In a
Turtle ship the "Annals of the Joseon Dynasty", which mention a mock battle between a "gwiseon" and a Japanese warship. However, these early turtle ships soon fell out of use as Korea's naval preparedness decreased during a long period of relative peace. Turtle ships participated in the war against Japanese naval forces supporting Toyotomi Hideyoshi's attempts to conquer Korea from 1592 to 1598. Korean Admiral Yi Sun-Shin is credited with designing the ship. His turtle ships were equipped with at least five different types of cannons. Their most distinguishable feature was a dragon-shaped head at the bow (front) that could launch cannon