The colonel pouted: "The little devil with a row of 6,500 tons of submarines was only able to build it at the end of World War II. If it still can't be done now, it's better to find seashells soaked in urine." and strangle yourself! Don't say six 1,500 tons, if you don't consider practicality and only pursue diving and surface navigation, we can build a 20,000 ton submarine for you!