The movie version has a missile hitting a warship, followed by an enormous fireball and perhaps an aircraft carrier folding in half. Real naval warfare usually does not work like that. More importantly, sinking the ship may not even be the main objective.
A U.S. warship is effectively a small city that moves. A destroyer carries roughly 300 people, while an aircraft carrier can have around 5,000 aboard when its air wing is included. Inside that enormous steel structure are fuel, ammunition, electrical systems, radar, aircraft and, in the case of an American nuclear carrier, reactors. Naval design and training assume that a ship may be hit and that a properly trained crew has a reasonable chance of keeping it alive. But an enemy missile does not necessarily have to sink the ship. Knocking it out of the battle may be quite enough.
The history of anti-ship missiles illustrates the point. Most missiles that have killed or crippled warships since the 1960s were hardly science-fiction weapons. They included Exocets, Soviet-designed Termits and later weapons such as the Ukrainian Neptune. Successful strikes against even quite substantial ships have repeatedly demonstrated that the initial explosion is only part of the problem. Fire, smoke, loss of electrical power and flooding can be equally dangerous.
HMS Sheffield was hit by an Argentine Exocet during the Falklands War in 1982. There has long been debate about whether its warhead detonated fully, but the resulting fire devastated the ship. USS Stark took two Iraqi Exocets in 1987 and lost 37 sailors, yet survived. USS Cole was almost torn open by a suicide boat in 2000 and survived as well, although it required major repairs. Russia's cruiser Moskva sank in 2022 after Ukraine said it struck the ship with Neptune missiles, followed by fire and flooding. Different weapons and different circumstances produced the same basic lesson: the missile creates the emergency, but what happens afterwards can determine whether the ship survives.
Modern American ships are not Sheffield or Moskva. The U.S. Navy has invested enormously in compartmentation, firefighting, redundancy and damage-control training, much of it because of painful experience aboard ships such as Forrestal, Enterprise, Stark and Cole. American sailors train for precisely the situation in which the lights go out, smoke fills compartments and people have to keep working while the ship is damaged around them.
Unfortunately, the weapons have improved as well. China has developed the DF-21D and DF-26 ballistic missile systems partly around the problem of keeping American naval forces at a distance. Other states and non-state forces possess less sophisticated anti-ship weapons, but sophistication is not everything. A comparatively crude missile can still cause serious damage if it gets through, particularly during a larger attack in which defensive systems are already occupied.
Suppose, then, that a missile gets through. Against a destroyer, the consequences could be immediate even if the hull remains afloat. Radar and communications equipment are particularly important because a modern warship depends upon its sensors. Damage those systems and a destroyer may retain missiles in its vertical-launch cells while losing much of its ability to use them effectively. The crew's priority can change within minutes from fighting the enemy to fighting fires.
A carrier presents a different problem. A single conventional missile is unlikely to send a 100,000-ton American carrier straight to the bottom. The famous sinking exercise conducted on the retired USS America demonstrated just how difficult a large carrier-sized hull can be to destroy. But this can provide false reassurance because sinking is the wrong standard.
A carrier exists to operate aircraft. Damage the flight deck, aircraft elevators, fuel systems, sensors or other essential equipment badly enough and the carrier may cease functioning as an airfield even though it remains perfectly visible above the water. In a short and intense war, a carrier heading for repairs can be almost as useful to the enemy as one resting on the seabed.
Nor can another carrier necessarily be produced to replace it. The United States possesses eleven nuclear-powered fleet carriers, but they are never all available for combat simultaneously. Some are undergoing maintenance, refit or training. The loss of even one operational carrier for weeks or months would therefore matter far more than simply subtracting one from eleven.
The first battle after the missile hits would take place inside the ship. Fires must be contained, damaged compartments isolated, flooding controlled and wounded sailors treated. Electrical power may have to be restored and ammunition protected. On a nuclear-powered carrier there is also the obvious necessity of protecting the reactor spaces.
This is not glamorous work, but it may decide the fate of the ship. The U.S. Navy takes damage control extremely seriously for good reason. A sailor with breathing apparatus, a hose and the ability to close the correct watertight door can sometimes matter more at that moment than another billion dollars of weaponry.
There is also a human reality that discussions about carrier warfare sometimes obscure. A carrier may contain around 5,000 people. Talk about casually "taking out a carrier" therefore means discussing an event potentially involving thousands of casualties. The presence of nuclear reactors makes the consequences of extreme damage more complicated still, although a conventional missile strike does not mean that a naval reactor explodes like a nuclear bomb.
While the crew fights for the ship, the rest of the carrier strike group has another problem. Escorts may have to reposition. Aircraft already in the air need somewhere to land. The damaged vessel may remain with the force, withdraw under escort or, in the worst circumstances, be abandoned. At the same time, American intelligence would be trying to establish exactly where the attack originated and who ordered it.
A missile fired by the Houthis is one thing. A missile launched by an Iranian military unit is another. A Chinese missile striking an American carrier during a confrontation over Taiwan is something else again. Attribution determines what Washington can plausibly do next, and those decisions would probably begin while sailors were still fighting fires.
The political pressure would be enormous if hundreds of Americans had been killed. Television coverage would show the damaged ship repeatedly. Photographs of the dead would follow. Members of Congress would demand retaliation. Allies would watch closely, as would every American adversary. The president would have to decide whether to strike the launcher, attack military infrastructure more broadly or attempt to prevent the incident from escalating into a much larger war.
None of this means that a conventional missile strike automatically leads to nuclear war. It does mean that escalation becomes much harder to control when large numbers of Americans have just been killed. Political leaders would be making decisions under enormous pressure and with incomplete information. That is precisely the situation in which mistakes become dangerous.
This also explains why the enemy does not necessarily need to destroy the U.S. Navy. The more realistic objective is to make American naval power increasingly costly and dangerous to employ.
China, for example, does not necessarily need to sink several American carriers during a Taiwan conflict. If missile threats force those carriers to operate much farther from the battle, their effectiveness has already been reduced. Iran does not have to defeat the Fifth Fleet ship for ship. Even the Houthis have demonstrated how relatively inexpensive missiles and drones can force enormously expensive naval forces to devote considerable resources to defending themselves and commercial shipping.
The important concept here is the "mission kill." A ship can remain afloat yet be incapable of performing the task for which it was sent. That is a military success for the attacker even if dramatic photographs of a sinking carrier never appear.
There are two bad ways of responding to this reality. One is to declare that aircraft carriers are obsolete because missiles will inevitably destroy them. That exaggerates the effectiveness of offensive weapons and ignores the considerable defensive capabilities surrounding a carrier strike group. The other mistake is to assume that American naval superiority makes the missile problem largely irrelevant.
The more reasonable conclusion lies between those extremes. Modern warships are extremely difficult to sink, particularly large American carriers, but they can be damaged and temporarily or permanently removed from combat. Defensive missile magazines are finite. Attackers can fire salvos rather than individual weapons. Submarines, aircraft, ballistic missiles, cruise missiles and drones can potentially attack from different directions. The problem becomes one of numbers as much as technology.
That should influence how the United States builds and deploys its future fleet. More distributed naval power, larger defensive magazines, unmanned systems, improved interceptors and longer-range aircraft and weapons all reduce the need to place an enormous concentration of American combat power within an adversary's easiest striking range. The carrier can remain an extraordinarily powerful weapon without being treated as an invulnerable one.
If a missile does eventually cripple a major American warship, three things will happen almost simultaneously. Sailors will fight to save their ship, commanders will try to repair the hole suddenly created in their battle plan, and politicians in Washington will decide how much larger they are prepared to make the war.
That last part may ultimately matter most. A missile does not need to send an American carrier to the bottom to change a war. It merely has to demonstrate that the carrier can be hit, badly enough and often enough, for political leaders to start reconsidering where they are prepared to send it.
The real contest is therefore not simply missile against armour or missile against interceptor. It is also a contest over risk. Once an adversary can impose enough risk on the fleet to influence American decisions, the missile has already achieved something important, whether the ship sinks or not.
https://weichert.substack.com/p/what-happens-when-a-ballistic-missile