One of the key advantages of submarines is their ability to operate independently of surface vessels and aircraft. This independence allows submarines to operate in areas that are difficult to reach or heavily defended by enemy forces. Submarines can navigate shallow waters, evade enemy detection, and conduct missions in hostile environments where other military assets would be vulnerable. Submarines are also highly mobile and flexible weapons platforms. They can quickly move from one area of operation to another, making them ideal for responding to rapidly changing threats and emerging crises.