carried on every vessel this increases a ship's potential firepower many times over. While an typically carries eight Harpoons ready to fire, it carries forty or more Standard missiles in its vertical launch cells. This also presents a Standard armed ship with the potential to attack a long range target without necessarily trying to sink it, something very valuable against non-military targets. While naval guns have largely been supplanted by missiles, guns remain a part of many ships' weaponry. Weapons such as the 5-inch Mark 45 gun remain in service to provide artillery support against land targets but also with a function against surface ships. Missiles are typically a better weapon in terms of their destructive potential but cannon shells are much harder (if not impossible) to intercept with anti-missile defence systems and likely will not be seen on the defender's radar, providing a potential advantage for a surprise attacker. Equally, guns do not require a radar lock to fire, giving them utility against stealth vessels or those too small to be detected. Submarine ASuW Undersea versus fleet action is commonly described as a "cat-and-mouse" game, where submarines seek to escape detection long enough to engage in a punishing strike against the much more valuable aircraft carrier fleet groups. Early Soviet submarine designs could be heard "across the Atlantic," but by the late 1980s, many advanced designs were approaching sound-output equivalent to a body of water the size of the sub. P-3 Orions or other ASW maritime patrol planes could deploy magnetic anomaly detectors or disposable sonobuoys, against which the concept of a submarine firing a SAM was generally considered a poor trade-off (the revelation of the submarine's location was not generally considered worth the possible hit on a single plane). However, the concept of the submarine firing on the plane has been revived with Germany's Type 209 diesel submarines. Submarines seeking to engage in ASuW can also be targeted by other submarines, resulting in wholly undersea combat. Shore/Space ASuW Shore-based assets may have provided the decisive edge in surface warriors, with constraints imposed by range of such assets. Furthermore, satellites controlled from ground stations could provide information on enemy fleet movements. Post Cold-War In the post-Cold War era, UAVs and asymmetric threats such as the suicide boat are adding additional complexity to the ASuW discipline. Naval warfare