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| Visby Class Swedish Corvette |
The
pages of the September 2013 issue of the United States Naval Institute Proceedings were filled with
articles extolling the potential political-military influence and combat
effectiveness of the 600-800 ton littoral missile corvette. The distinguished
authors are well known and highly respected naval experts such as former U.S.
Fleet Forces Commander Admiral John Harvey Jr., Fleet Tactics author Captain Wayne
Hughes, and U.S. Naval War College Center for Naval Warfare Studies Dean
Captain Robert C. Rubel. Collectively in two articles, the authors recommend
the U.S. adopt flotillas of small, missile-armed surface combatants, such as the Swedish Visby class as a
principle combat component of the U.S. surface fleet. The authors believe these
small craft will play a crucial role in peacetime as ambassadors of political/military interest and in war as expendable patrol combatants, commerce raiders
and attack platforms of choice in littoral waters. While compelling in scope
and vision, the authors’ analysis leaves out crucial aspects of history,
geography, strategy and logistics. Historically the small combatant has been a
persistent underachiever in the fleet structures of many navies; the geography
of potential future battlefields like the Indo-Pacific region demands high-endurance, more capable platforms than
the small warships the authors advocate; the strategic needs of the U.S. in
“big” spaces like the Pacific are better served by larger platforms and
aviation assets than by surface ship flotillas; and finally the logistics limitations of
small combatants will outweigh their potential effectiveness. The combination
of these factors should lead U.S. civilian and naval leaders to reject both the
small combatant and the attendant operational concepts advocated by these
experts.
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| Late 19th Century Torpedo Boat |
The small combatant
armed with capital ship-killing weapons is a familiar figure from the naval
history of the 120 years. The torpedo boat, the submarine, the destroyer, and
the missile patrol craft were all touted from their inception as the bane of
larger navies’ capital ships and possible equalizer for nations with smaller,
financially-challenged navies. While British naval theorist Sir Julian Corbett
was correct in that the threat from these craft upended many long-held notions
of naval combat, only the submarine threat has evolved into a persistent and regular
threat. The others have never met the expectations of designers and theorists.
The torpedo boat was matched by changes in armament of capital ships and by the
addition of the “torpedo-boat” destroyer to their escort before the First World
War. While the torpedo boat was a persistent threat that concerned commanders
from 1914 to 1918, it scored few operational successes. Those that did involved
single units operating at night or in stealth conditions such as the successful
attack on the British pre-dreadnought HMS Goliath by the Turkish Navy’s
torpedo boat Muavenet-i Milliye during the 1915 Dardanelles campaign. The torpedo-armed destroyer evolved
into a general- purpose warship in its own right before World War 2. Torpedoes
too evolved and became much longer ranged weapons that the Japanese Navy in
particular employed from both cruisers and destroyers. These changes, including
a nearly 50% increase in weight and firepower made the destroyer a much more
conventional weapon. Whole flotillas of destroyers were sometimes deployed in
the Second World War, but primarily as a defensive screen rather than offensive
formation. They got “assist” credit in the sinking of battleships such as the
German Scharnhorst
and the Japanese Hiei, and a British destroyer flotilla sank the Japanese heavy
cruiser Haguro
in the waning days of the war, but these victories by no means constitute a
strong advocacy in favor of the flotilla as a combat organization.
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| Cold War-era Soviet OSA II Missile Boat |
The anti-ship
cruise missile-armed small combatant gained a similar feared status in the Cold
War after Egyptian missile boats sank the Israeli destroyer Eilat in October 1967 and after successful Indian Navy missile boat attacks on Pakistani naval units in
December 1971. While the surface-launched cruise missile is a growing and
significant threat to surface warships, the “missile corvette’s” promise
remains unfulfilled. Argentine missile corvettes never threatened the British
Royal Navy task force that recaptured the Falkland Islands in 1982. Libyan
missile corvettes were sunk by U.S. Navy aircraft before they could threaten
U.S. warships executing strikes against Libya in 1986. The Iranian missile
corvette Joshan
was able to launch a harpoon surface to surface missile against the cruiser USS
Wainwright,
but the weapon either failed to arm or was decoyed by passive means. Saddam
Hussein’s missile boats were destroyed by aircraft and helicopters before they
launched a single missile in 1991. The only U.S. recent U.S. entries have been
the 1970s-era PHM class hydrofoil missile combatants and the Cyclone class patrol coastal
(PC). The PHM’s were intended to be a deployed force in the Mediterranean and
perhaps the Persian Gulf, but high maintenance and fuel costs as compared with
conventional combatants ensured their retirement in the post Cold War budget
cuts of the 1990s. The PC’s remain today, but are lightly built and have a
current armament insufficient for offensive combat operation.
Past failings of small combatants to live up to expectations should not
alone deter the U.S. from embracing flotillas. The relative casualties suffered
by these ships however provide numerous examples of why not to adopt
corvette-sized combatants. Twentieth century naval battles from Jutland to more
recent actions in the Persian Gulf are replete with small ships suffering heavy
casualties when sunk. A big ship can suffer a catastrophic sinking with heavy
loss of life, but when small ships sink they inevitably take more of their
crews with them. In his policy paper “Aircraft Carriers, the Real Choices” from
1978 John Lehman stated that the larger the carrier, the less vulnerable to
attack it is. That law can also be applied to surface combatants and while all
ships are vulnerable to loss, missile corvettes as those advocated by the authors
of the Proceedings
articles are more likely to be sunk if attacked than larger more capable
warships. The example of the October 2000 attack on the destroyer USS Cole is a good example of
the survivability of larger ships. Many experts have commented that the Navy’s
new littoral combatant ships (LCS), a warship smaller and less robust than the Cole would not have survived
such an attack. A corvette-sized ship even smaller than the LCS would have
likely been completely destroyed with all hands. Senior civilian and naval
leadership has frequently stated that people are the Navy’s most valuable
resource. How does this maxim apply to corvette sized ships are more likely to
be sunk and suffer higher casualties in the process than larger ships? Napoleon
was reputed to have said “God is on the side of the big battalions.” History
would seem to indicate that maxim is true for larger ships as well.
Geography and
logistics issues also favor larger, high endurance vessels over numerous
smaller ones if the operator’s force is deployed away from home. A nation that
employs numerous small warships for defense of its coastal waters has the
advantage of interior lines of communication and logistics in both operating
and supporting this force. Those factors have made small combatants the choice
of many states from late 19th century France to present day Iran to
defend their coastal waters against the deployed forces of maritime powers such
as Great Britain in the 19th century and the United States today.
The authors of the flotilla pieces have eschewed the long lines of
communication necessary to support their forward-deployed flotillas from home,
preferring to support them from advanced bases in friendly states. That would
have made sense in the 1990’s and early 2000’s when potential U.S. opponents
lacked the modern weapons necessary to effectively attack those forward bases.
That is not the case now, and action by an enemy could cut off those forward
bases from U.S. support or render them incapable of supporting deployed U.S.
flotillas. The case of the U.S. Asiatic Fleet of 1941 is illustrative of this
problem. This U.S. fleet was a forward deployed element based in the
Philippines with the mission of being a deterrent or at least a “tripwire”
against potential Japanese aggression. Its surface ship assets were either
small or outmoded, but it possessed a substantial fleet of submarines that were
expected to be very effective in attacking Japanese ships. When the Japanese
destroyed or overran their bases however, the Asiatic fleet submarines were
forced to withdraw to Australia and Hawaii. Professor James Holmes from the
Naval War College pointed out in a 17 September piece in The Naval Diplomat that the failure of the
torpedo boats of the Asiatic fleet to perform effectively negatively influenced
future U.S. attempts to develop small war fighting craft. It wasn’t just the PT
boats; the whole Asiatic fleet of light, forward deployed ships and submarines
failed to significantly impact the Japanese Pacific advance in the early part
of the Second World War. The loss of their base in the Philippines greatly
hampered their ability to conduct effective combat operations. Loss of a
significant forward base such as Singapore or Guam due to ballistic missile or
air attack could force U.S. surface flotillas, like the Asiatic fleet in 1941,
to also withdraw. Unlike even World War 2 submarines, these surface ships would
be extremely vulnerable to attack, especially if completely cut off from U.S.
logistics elements. A deployed tender for these ships as advocated by the
authors would be even more at risk. The Asiatic submarine fleet had to abandon
its tender USS Canopus after it suffered damage from Japanese air attacks. A
modern tender would be an equally vulnerable, high value target for attackers.
Lack of endurance outside the area supported by a vulnerable land base or
tender is still a significant drawback to flotilla combatants today.
Finally, the
strategic situation of today does not support a large force of deployed
corvette flotillas. These ships might have been useful in the previous two
decades when the U.S. was more supportive of intervention against rouge states
or in support of nations on the verge of collapse. While useful perhaps in
conducting coast guard style operations that support these missions,
corvette-sized ships are more vulnerable to attack in an increased threat
environment. Combat in the littorals is best left to carrier or land-based
aviation assets that are less vulnerable to attack, faster, re-targetable and
re-useable over a longer period than a small surface ship that must depart the
area to replenish its missile magazines in port. While the current carrier air
wing is deficient in the long range assets necessary to that mission, it should
not be replaced by a more vulnerable surface platform. As for the influence
mission potential, why is smaller somehow better, especially in the
Indo-Pacific basin? As demonstrated by the photo of the USS Freedom operating with a
comparable Malaysian frigate used by the authors in their article, the
nations of the Western Pacific have an abundance of larger warships and do not
need a smaller U.S. Navy vessel executing a port call to make them feel better
about military to military cooperation. While a missile corvette might be a
good choice for a port visit to a West African nation, current U.S. surface
combatants do not dwarf their Asian contemporaries and LCS is actually smaller
and less capable than many Asian frigate designs.
The study by LT
Schwartz on small boat flotilla operations cited by the authors seems to
geographically place their commerce raiding activities directly within the
envelope of Chinese air and missile attack capability. If U.S. carrier or
shore-based aviation assets were available to provide cover for the missile
corvettes, they would remain reasonably safe from Chinese air and surface ship
threats. What happens however if those U.S. assets are not available or
repressed? The authors have previously stated in other works that they believe
the current U.S. carrier strike group is unable to defend itself within range
of Chinese air and missile attack. What also happens if the Chinese eliminate
U.S. land-based aviation assets in the Western Pacific as part of an initial
attack? The concept of surface
ships without aviation support as effective commerce raiders has been defunct
since the Second World War. Re-introducing it without addressing these caveats
does not represent an effective analysis. In any case, a distant blockade of
China at a maritime choke point by local allied forces and supported by larger
U.S. Navy units would play more to current fleet capabilities.
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| Israeli Saar 5 class Hanit after missile hit |
The current and
potential proliferation of advanced cruise and even targetable ballistic
missiles has made the threat environment more dangerous than the halcyon days
of the 1990s. Even network-supported small combatants are at risk from attacks
like the one that damaged the Israeli missile corvette Hanit in 2006. The crew of the
Hanit
was lucky in that the probable C-802 missile hit an aft area crane and nor the
hull of the ship. A number of experts including naval analyst and war game
designer Chris Carlson believe that had the Hanit taken a direct hit,
there was a good chance she would have been severely damaged or sunk. At over 1200
tons full load displacement, the Saar 5 class Hanit is nearly double the
size of the craft the authors propose. Such a craft would most likely been
destroyed by a similar attack. In the process of designing the U.S. LCS class
vessels, former Undersecretary of the Navy Robert Work noted in his January
2013 Naval War College monograph on the history of the LCS that in 2001 Navy
leaders considered the 600-800 ton ship the Proceedings authors recommended in,
but decided instead on the 3100 ton LCS as a more robust and capable platform
than the missile corvette. Since the threat level in the form of new cruise and
ballistic missiles such as the Chinese DF-21 has increased, why should the Navy
now adopt a less secure platform in large numbers?
U.S. Navy leadership
was correct a decade ago in deciding that the LCS was the smallest warship
concept it would accept. The vast space of the Indo-Pacific basin is very
different from the relatively confined waters of the authors’ favorite
Mediterranean Sea scenario. No war fleet expecting to operate in this large
space can afford to be too closely tied to land-based support or even deployed
tenders. The example of the first several months of the Second World War in the
Pacific ought to be a strong caution against relying too much on fixed
installations. Singapore fell to the Japanese long before any British analysis
ever expected. The global scope of potential U.S. operations demands a fleet of
larger, high endurance warships, supported by a well-defended logistics train
that swiftly move to gain sea control where required. Missile corvettes that
relay on forward bases and tenders for support are only the latest in a long
line of small craft that have not lived up to their advertised potential. While
perhaps useful in a geographically constrained space like the Mediterranean Sea
or Persian Gulf, they are very vulnerable to attack by advanced cruise
missiles, submarine torpedoes without coverage from land based aviation or the
larger surface force units they are intended to replace. If their fixed bases
are compromised or overrun, they do not have the endurance or logistics support
to make a fighting retreat to the safety of other U.S. forces.
The
operational environment has changed since these craft were first proposed in
the early 1990s. Bereft of significant opponents with capable naval forces
since the fall of the Soviet Union, the United States in now confronted with a
peer/near peer naval competitor in the form of the Chinese Navy and a growing
threat from the Iranian fleets (Regular and Revolutionary Guard Corps). The
North Korean Navy has demonstrated its willingness to attack without warning as
the sinking of the South Korean corvette Cheonan
demonstrated. This is not an environment for small corvettes. While U.S. warships may now be more vulnerable than in the last 20 years, that condition is no reason to reject capable, high endurance ships out of fear for their loss. This author has
the highest respect and admiration for the authors and their many years of
sterling service to the United States Navy, but he respectfully disagrees with
their belief that the missile corvette should represent a large part of the
future U.S. Navy surface combatant force. This concept should be rejected in
favor of a balanced fleet that boasts a mix of large ships like the DDG and
smaller ships like the LCS. Only a balanced fleet can really hedge all bets
against future threats. A balanced fleet, rather than one of corvettes is the
correct course for the future U.S. surface combatant fleet.








