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HOW CHINA’S NEW RUSSIAN AIR DEFENSE SYSTEM COULD
CHANGE ASIA
JANUARY
21, 2016
The Russian S-400 TRIUMF (NATO designation
SA-21) surface to air missile (SAM) entered the global media spotlight late in
2015 when Moscow deployed the system after Turkey’s shoot-down of a Russian
Su-24 FENCER airplane near the Syria border on Thanksgiving Day. The Russian
deployment compelled Turkey to pause its air operations and reportedly impacted
the execution of U.S. and coalition air operations in the region, demonstrating
the considerable reach and influence of this
advanced air defense system.
This episode demonstrated the S-400’s potential
as a weapon with strategic effects, a role that China, the first export recipient
of the system, may seek to exploit in future crises. In April 2015, Russia
announced the sale of four to six S-400
battalions to China. It remains unclear where China will deploy the
assets. However, deployment of the system could influence the regional security
order and dramatically impact the ability of the United States and its allies to
respond to crises related to Taiwan, the Koreas, and the East and South China
Seas.
What is the S-400?
The S-400 is the most dangerous operationally
deployed modern long-range SAM in the world. Its maximumeffective range is up to 400km
(215 nautical miles). The system reportedly can track 100 airborne targets and
engage six of them simultaneously. The S-400 reportedly has the
capability to counter low-observable aircraft
andprecision-guided munitions,
and is also reportedly extremely mobile.
The SAM is an excellent example of an anti-access/area-denial (A2/AD)
system. The idea of A2/AD is to prevent an opposing force from
entering an area and limit an opposing force’s freedom of action in an
operational area. As Robert Haddick recently emphasized at War on the
Rocks, A2/AD systems pose a
unique problem to U.S. power projection and the ability of the U.S. military to maintain its technological edge over adversaries.
Yet Russia’s deployment of the S-400 reveals
that such systems can have even broader strategic effects. Though not the first
SAM to threaten aircraft at hundreds of miles in range — SA-5, deployed since 1966, has a range of 150
nautical miles — the S-400’s capabilities render it far more dangerous than a
traditional defense-oriented SAM system. It can engage a wide range of targets,
including stealth aircraft and cruise missiles. Its range against aircraft
operating at medium or high altitudes is so great that it can threaten aircraft
in neighboring countries within their own air space. This capability alone
raises the risk of operating such expensive aircraft anywhere near a deployed
S-400 system.
A single S-400 missile that costs a few million
dollars could bring down an asset worth hundreds of millions of dollars, such
as the RQ-4 unmanned intelligence aircraft, F-22 or F-35 fighters, or worse, a B-2 bomber worth over $2
billion per plane. And it could do so from farther away than any
adversary SAM has yet been capable of. The S-400 thus offers a favorable cost
ratio that could influence decision-making at strategic levels.
Potential Applications
for China
Fielded in sufficient numbers and in combination
with other advanced air defense systems, the S-400 can strengthen and extend
China’s already robust network of A2/AD capabilities. These include the S-300PMU and HQ-9 (range 200km) SAM systems and the DF-21D (range 1,500km)
anti-ship ballistic missiles (ASBM). The exponential
system-of-systems effect of these weapons continues to pose a serious threat to
the credibility of U.S. security assurances to allies and partners that have
disputes with China.
The S-400 system could enable Chinese forces to
deter or influence the behavior of aircraft and the application of airpower in
peacetime. Russia’s deployment in Syria has already illustrated this possibility. While
Russia has shown no intention of using the S-400 to engage U.S. or coalition
aircraft (except perhaps those belonging to Turkey), air operations planners in
the theater have likely developed new procedures to guide manned and unmanned
aircraft flying within range of the S-400. If Russia chose to do so, it could
have effectively neutralized the effectiveness of U.S., French, or NATO
aviation based in the Mediterranean. A subsequent coalition turn to standoff
munitions would significantly increase the per-shot cost, possibly dissuading
more vulnerable allies from participating in the U.S.-led high-end conflict.
The strategic influence of the S-400 becomes
even clearer when the system is viewed through the lens of potential military
crises or contingencies along China’s periphery. Although open-source
information about the deployment of this system in China remains unclear, there
are several plausible candidate locations. U.S. and allied leaders should not
be surprised if China deploys the S-400 to support operations against Taiwan,
near the Senkaku Islands in the East China Sea, along the North Korean border
for peninsula contingency operations, and in the South China Sea to support
operations to defend sovereignty claims.
Deployed along the Taiwan Strait, the S-400
operating envelope against non-stealthy aircraft at medium or high altitudes
would cover the entire territory of Taiwan and reinforce the coverage provided
by the S-300PMU and HQ-9 SAMs. In the event of conflict, any aviation forces
that took to the air from Taiwan would thus immediately risk being shot down.
For the most part, participating U.S. air forces and U.S. naval aviation would
similarly need to operate well east of Taiwan to avoid the SAM threat.
Intelligence, surveillance and reconnaissance (ISR) airplanes operating at such
distances would have little ability to accurately monitor developments west of Taiwan,
thus constraining their utility as a means of providing third-party
intelligence to Taiwan or to demonstrate U.S. resolve early in a crisis through
a show of force. Without detailed, accurate and timely tactical intelligence
from ISR platforms to guide their attack, allied fighter and strike aircraft
(assuming that they survived within the SAM envelope) would become highly
vulnerable in any effort to fight air and surface threats. U.S. and Taiwan
planners must therefore plan to yield air superiority to the Chinese, accept
high levels of risk to U.S. aviation assets, or contemplate what could be highly escalatory mainland
strikes against the mobile SAM systems to neutralize the threat.
Deployments of the S-400 by China along the
Korean border and on the Shandong peninsula would allow coverage over most of
North Korea. In the event of a war between the two Koreas, China could deploy
the system to coerce Pyongyang or deter U.S. and South Korean forces from
carrying out air operations that Beijing regarded as destabilizing. China could
also use the S-400 in conjunction with S-300PMU and HQ-9 SAM systems to put at
risk air operations from U.S. carrier assets operating in the Yellow Sea, thus
forcing the ships to operate east of Korea. By carefully positioning S-400
systems, China could also try to exert influence by compelling the United
States and South Korea to coordinate air activity with Chinese military authorities
under the pretense of air activity de-confliction. This might enable Beijing to
throttle the tempo of U.S. and allied operations.
The Senkaku Islands lie just beyond the range of
an S-400 system deployed on China’s coast. Nevertheless, the deployment of the
system in a crisis involving the Senkakus could again help China exert
influence over the situation. The S-400 could provide air cover for maritime
platforms that sortied from China’s coast towards the Senkakus. If paired with
joint ship-borne SAM systems such as
the HHQ-9 and a combat air patrol
(CAP) provided by land-based fighter aircraft, the combined effect could help
extend SAM-enabled air cover over the Senkaku Islands, a capability Japan would
find difficult to match. Japanese and U.S. planners must thus plan carefully to
contest a Chinese CAP and strike the Chinese SAM-equipped combatants while
operating outside the range of the land-based S-400 or accept a possible loss
of air superiority over the islands in a crisis or conflict.
The stationing of strategic nuclear submarines
and potentially an aircraft carrier at Hainan Island provides China with significant reason to
station the S-400 system and other missiles systems on that island, where the
combined effect could exert influence over the northern part of the South China
Sea. China has also built up artificial
islandsthat could support the deployment of this system in the
middle of the Spratly Islands, allowing them to control the airspace over the
entire range of islands. In a crisis, China could use the SAM system to control
the presence of foreign reconnaissance aircraft, degrading the ability of the
United States and other countries to gain an accurate picture of tactical
developments. In a militarized crisis with rival disputants, controlling the
airspace over the entire Spratly Islands would grant a tremendous operational
advantage over rival claimants. In the event China decided to impose an Air Defense
Identification Zone (ADIZ) in the South China Sea, an S-400 deployment in the
Spratlys as well as on Hainan Island and/or the Paracel Islands would lend
serious credibility to Chinese enforcement efforts. Still, doctrine, weather,
and the isolated position of the islands may bound the utility of the S-400 on
South China Sea islands. Because the S-400 relies on its mobility to ensure
survivability, placement on an artificial island on the Spratly Islands would
render the systems highly vulnerable to attack. The corrosive effects of high
humidity and salt water would also make maintenance of the unmarinized S-400
system especially difficult, particularly at so remote a location.
Policy Implications
For China, the S-400 supplements and reinforces
other important A2/AD capabilities such as the S-300PMU and HQ-9 SAM, the DF-21D anti-ship ballistic
missile (ASBM), electronic warfare sets, and air-launched cruise
missiles. The combined effect of these mutually reinforcing weapons systems
will boost Beijing’s confidence that it can challenge the viability of U.S.
military interventions in contingencies along China’s borders.
Without major investments in stealth and
counter-SAM technologies, or major changes to training and strategic guidance
in the face of such systems, the United States faces considerable challenges to
countering this threat. The United States relies on a combination of
stealth, electronic attack, decoys, and radar-homing missiles to counter air defense systems. The arrival of
the S-400 will not likely change that approach, but it will impose greater
challenges to its execution. If the United States chooses to operate outside
the envelope of the weapons system, air missions will not likely be worth
conducting because so few airborne capabilities can operate effectively at so
distant a range. Suppression through missile attack on the S-400 offers one
possibility, but the mobility of the systems makes for an elusive target.
Moreover, the escalatory implications of strikes on Chinese territory to
destroy the equipment make this a risky option at best.
U.S. and allied planners and policymakers will
need to think through more viable and less escalatory ways to address the
threat of the S-400 and related advanced SAM systems in a contingency involving
China and a U.S. ally or partner. Alternatively, they may simply need to accept
a higher level of risk. New operational concepts may be required to deal with
the threat, such as a greater reliance on fifth-generation — and in the future,
sixth-generation — stealth aircraft, or advanced tactics that limit the
exposure of aircraft to the SAM threat.
Planners may need to either accept the
possibility of higher losses to high-end military platforms or consider
re-investing in low-cost expendable platforms such as UAVs. For the longer
term, U.S. decision-makers should plan on developing countermeasures to the
S-400. This may require investments in electronic jamming and other electronic
measures to confuse or deny the ability of the S-400 radar to track aircraft.
In all cases, the S-400 will provide China a powerful weapons system
certain to exacerbate an already formidable A2/AD challenge for U.S. military
forces in peacetime, in crisis, and in conflict.
Timothy Heath is a
senior international defense research analyst at the nonprofit, nonpartisan
RAND Corporation.
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3 THOUGHTS ON “HOW CHINA’S NEW RUSSIAN
AIR DEFENSE SYSTEM COULD CHANGE ASIA”
- Cliff B says:
An excellent analysis of a potentially game changing weapons
system — from a country we have assumed rather incorrectly is technology wise
in the darker ages.
Russian actions are guided by the political (strategic) goal they
plan on achieving. U.S. aircraft operating in Syria aim their efforts solely at
ISIS, not against Assad. We are functioning as Assad’s Air Force in that aspect
of his struggle, at our cost. The Russians are not going to interfere with that
effort.
However, should the Turks fly shorties in support of their Turkmen
cousins, they may provide fodder for the first live fire test of that system.
If the U.S. is electronically monitoring that situation, should it ever occur,
it could provide a gold or silver mine of information. It would be the only
valuable contribution the Turks have made to NATO.
- Christopher
Bowen says:
Unlikely that this is a complete surprise to DARPA. Is anything in
development in their toolkit a suitable counter measure? Laser weapons?
Electronic intervention? If this is an impregnable unstoppable superweapon,
will we have to concede world domination to Russia and China by default? Are we
incapable or unwilling to develop a similar weapon system with greater range
and lethality? Syria is the testing ground for new Russian weaponry and we are
closely monitoring performance and capability, no doubt.
- Warlock says:
Yes, but….
This is the problem with judging weapons based on the
manufacturer’s spec sheets — you don’t get the whole story. That’s true in
spades with air defense systems. The S-400 (SA-21) — an evolution of the S-300
PMU (SA-10/SA-20) — is certainly an impressive system. It’s also very complex,
and the complete system has a large number of lightly and unarmored components
– radar vehicles, command posts, reloaders, local security, and support
vehicles. It requires a fair amount of space to deploy, and as the author
pointed out, relies heavily on the ability to relocate for long-term
protection.
Nor is the system all-seeing — the radars are still limited to
what’s above the horizon — and all-knowing. However many tracks the battle
management computer can store, the system’s effectiveness still relies on the
operator’s ability to cue targets and manage engagements so the battery doesn’t
find itself static and out of missiles just at the moment a HARM or cruise
missile comes screaming over the horizon (under 20nm away, even with the fire
control radar on a mast). In short, human factors still matter, very much.
Not all the missiles are the big, 200+ nm-capable rounds
(primarily designed to intercept tactical ballistic missiles)…and those are
less maneuverable than the smaller, shorter-ranged ones (which is why they
carry a mix). SAM effective ranges are heavily governed by target aspect,
speed, and altitude, the max-range threat rings we all learned to brief in
school are often much smaller in real life.
Although the S-400 has been in service since the mid-2000s, and
the S-300 since the ’90s, neither has been used in combat. So real potential is
still unknown.
So…should we be paying attention? Certainly. Both the S-300 and
the S-400 are ideal systems to protect the coast (where their mobility is an
advantage) and high-value targets. Are one or two S-400 batteries deployed on
land-fill islands a “game changer”? Hardly — it’s just an another step in the
IADS/SEAD contest that’s been going on for decades.
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I was thinking much the same thing. I don't have much faith in the ability of political power elites of the world to avoid massive outbreaks of catastrophic stupidity. But even so, the idea that 14 Japanese ultra-nationalist activists could spark a world-wide conflagration is (hopefully) far-fetched. Someone's been reading too much Mishima.
Even above, it says that Tokyo disavows them.
China captures them. Returns them to Japan. Game over.