Why the world’s navies are going deep: Canada’s mega submarine deal explained

Canada is acquiring twelve German Type-212CD submarines, marking a significant defense deal. Poland also recently secured three Swedish A26 submarines for its navy. The US Navy plans to procure fifteen submarines by 2031, while China expands its fleet. Pakistan is adding eight Hangor-Class submarines to its existing vessels. India's navy is pursuing new submarines under Project-75I and other ambitious plans.