'Naval gunfire support (NGFS)' is the use of
naval artillery to provide
fire support for
amphibious assault and other troops operating within their range.
Modern naval gunfire support is one of the three main components of
amphibious warfare assault operations support, along with
aircraft and ship-launched
missiles.
Ship cannon have been used against shore defences since the early days.
NGFS is one of a number of disciplines encompassed by the term ''Naval Fires''.
Tactics
NGS is split into two types: direct fire, where the ship has
line of sight with the target (either visual use of radar), and indirect fire which to be accurate requires
artillery observer to call the
fall of shot.
When on the gunline, ships are particularly vulnerable to air attack from aircraft incoming from a landward direction and flying low to avoid
radar detection, or from submarines due to a predictable and steady (non-evasive) course.
History
First World War
In the
First World War,
monitors based in the
English Channel were used by the Royal Navy as artillery. They could fire several miles inland against German positions.
Second World War
The practice reached its zenith during World War II, when the availability of man-portable
radio systems and sophisticated relay networks allowed forward observers to transmit targeting information and provide almost instant accuracy reports — once troops had landed.
Battleships,
cruisers and
destroyers would pound shore installations, sometimes for days, in the hope of reducing fortifications and attriting defending forces. Obsolete battleships unfit for combat against other ships were often used as floating gun platforms expressly for this purpose. However, given the relatively primitive nature of the
fire control computers and radar of the era combined with the high velocity of naval gunfire, accuracy was poor until troops actually hit the beach and were able to radio back reports to the ship — usually after great numbers of them had died.
The solution was to engage in longer and longer bombardment periods — up to two weeks, in some cases— saturating target areas with fire until a lucky few shells had destroyed the intended targets. This had the unfortunate effect of "telegraphing the punch", alerting an enemy that he was about to be attacked. In the
Pacific War, this mattered little, as the antagonists were usually expecting their island strongholds to be invaded at some point and had already committed whatever combat resources were available. Bombardment periods were usually shorter in the European theater, where surprise was more often valued and ships' guns were responding to the movements of mobile defenders, not whittling away at static fortifications.
Naval gunfire can reach as far as inland, and was often used to supplement land-based artillery. The heavy-caliber guns of some eighteen battleships and cruisers were used to stop German
Panzer counterattack at
Salerno. Naval gunfire was also used to help curb German operations in
Normandy, although the surprise nature of the attack precluded the drawn-out bombardment which could have reduced the
Atlantic Wall defences sufficiently a process that fell to
specialist armoured vehicles instead.
Naval gunfire was also useful in a defensive capacity. Older ships were occasionally beached to provide a coastal defence platform, and during the
Battle of France the British discovered effective anti-tank artillery in the form of the four-inch (102 mm) guns from
destroyers tied up at the
quays of
Boulogne.
Post-war
Task Unit 70.8.9, the US Naval Gunfire Support Unit, was made up of
destroyers, armed with 5"/38 or 5"/54 guns, and continuously patrolled the coast of
South Vietnam to provide NGFS at short notice. If greater firepower was required then larger gunned
cruisers were called in for reinforcements. NGFS was controlled by the
United States Marines First
Air-Naval Gunfire Liaison Company (
ANGLICO) who provided spotters, usually airborne in light aircraft but sometimes on foot, in all military regions.
In the 1982
Falklands War, the British used NGS in support of the advance of the
British Army and
Royal Marines.
In the 1983 actions in Lebanon, fire support was provided on several occasions by destroyers and cruisers assigned to coastal patrol. They supported the US Marines as well as the Lebanese Army.
In the
2003 Invasion of Iraq, NGFS was used in support of operations on the
Al Faw peninsula in the early stages of the war by
Royal Navy and
Royal Australian Navy frigates.
United States
Naval Gunfire is still used for many of its traditional purposes. In the
United States Marine Corps, artillery units have several
Naval Gunfire Liaison Officers (NGLO, pronounced "no-glow") in each
battalion to maintain close contact between the branches for amphibious operations. The NGLO is responsible for the Shore Fire Control Party and works in the Fire Control Center with other liaison officers to coordinate Naval Gunfire with Close Air Support, Mortars and Artillery. The NGLO joins the others in the planning of fire missions in support of the Marine Infantry Regiment.
Additionally, the United States Marine Corps maintains three active (1st, 2nd, & 5th) and two reserve (3rd & 4th)
ANGLICO units. ANGLICO members are temporarily assigned to combat units of the United States and foreign nations that lack inherent fire support capability, such as naval gunfire. The navies of the world have almost universally moved away from the largest caliber guns of the early and middle of the 20th century because the battleships and large cruisers that carried them have been scrapped. The aircraft carrier and missile proving more cost effective.
Naval guns used on modern ships tend to be smaller caliber weapons but with more advanced targeting systems. It is unlikely that the large caliber guns will make a return and much of the traditional role of Naval Gunfire has been taken over by naval air power.
Continued Naval Gunfire Support Training
Despite the reduction in calibre size to guns, even ground-based
NATO forces' artillery
Forward Observers (FOs) and
Forward Air Controllers (FACs) are taught the rudiments of calling in and adjusting naval gunfire. With the exception of a few procedures the contolling principles are quite similar in both land and naval bombardment. While the ground-based FO starts his adjustment mission by saying, "Adjust Fire," the naval gunfire spotter says, "Fire Mission," from that point on the procedures are almost identical.
Shore Fire Control Parties participate in field operations, often with a Marine Artillery battery to provide simulated Naval Gunfire support. When available, Marine spotters will call the fire missions for Naval Ships undergoing their gunnery qualification tests, to provide both parties the opportunity to practice their skills.
One use of Naval Gunfire in modern operations is to provide Suppression of Air Defense (
SEAD) for
Close Air Support. Well timed
salvos provide covering fire for sorties and prevent enemy troops and batteries from effectively using anti-aircraft weapons.
See also
★
Air-Naval Gunfire Liaison Company
★
Field artillery team
for a
UK perspective
148 Battery, 29 Commando Regiment Royal Artillery
References
★
U.S Marine Corps: An Annotated Bibliography of Naval Gunfire Support
ex-Naval Gunfire Liaison Officer, HQ 1/10, 2nd MarDiv, FMFLant (Aggie80)