5 Navies with the Most Submarines in the World

4. North Korea

Submarines: 35

North Korea has one the largest fleets of submarines in the world. Last year in September, the country further strengthened its naval capabilities by launching Hero Kim Gun-ok, a ballistic missile submarine. During the launching ceremony, Kim Jong Un said the submarine will be ready for preemptive and retaliatory strikes against Seoul, and for countering the US if any of its fleets were to invade North Korea.