By Eric Vandenbroeck and co-workers
US New World War?
The United States is
a heartbeat away from a world war that it could lose. There are serious conflicts
requiring U.S. attention in two of the world’s three most strategically
important regions. Should China decide to launch an attack on Taiwan, the
situation could quickly escalate into a global war on three fronts, directly or
indirectly involving the United States. The hour is late, and while there are
options for improving the U.S. position, they all require serious effort and
inevitable trade-offs. It’s time to move with real urgency to mobilize the
United States, its defenses, and its allies for what could become the world
crisis of our time.
Describing the United
States’ predicament in such stark terms may strike many readers as alarmist.
The United States has long been the most powerful nation on earth. It won two
world wars, defeated the Soviet Union, and still possesses the world’s top military.
For the past year and a half, the United States has been imposing gigantic
costs on Russia by supporting Ukraine—so much so that it seemed
conceivable to
this author that the United States might be able to sequence its contests by
inflicting a decisive defeat by proxy on Russia before turning its primary
attention to strengthening the U.S. military posture in the Indo-Pacific.
But that strategy is
becoming less viable by the day. As Russia mobilizes for a long war in Ukraine and a new front opens in the Levant,
the temptation will grow for a rapidly arming China to make a move on Taiwan.
Already, Beijing is testing
Washington in East Asia,
knowing full well that the United States would struggle to deal with a third geopolitical
crisis. If war does come, the United States would find some very important
factors suddenly working against it.
One of those factors
is geography. As the last two U.S. National Defense Strategies made clear and
the latest Congressional Strategic Posture Commission confirmed, today’s U.S. military is not designed to fight wars
against two major rivals simultaneously. In the event of a Chinese attack on
Taiwan, the United States would be hard-pressed to rebuff the attack while keeping up the flow
of support to Ukraine and Israel.
This isn’t because
the United States is in decline. It’s because unlike the United States, which
needs to be strong in all three of these places, each of its adversaries—China,
Russia, and Iran—only has to be strong in its own home region to achieve its objectives.
The worst-case
scenario is an escalating war in at least three far-flung
theaters, fought by a thinly
stretched U.S. military alongside ill-equipped allies that are mostly unable
to defend
themselves against
large industrial powers with the resolve, resources, and ruthlessness to
sustain a long conflict. Waging this fight would require a scale of national
unity, resource mobilization, and willingness to sacrifice that Americans and
their allies have not seen in generations.
The United States has
fought multiple wars before. But in past conflicts, it was always able to
outproduce its opponents. That’s no longer the case: China’s navy is already
bigger than the United States in terms of sheer number of ships, and it’s growing by the equivalent of the entire French Navy (about
130 vessels, according to the French naval chief of staff) every four years. By
comparison, the U.S. Navy plans an expansion by 75 ships over the next decade.
A related
disadvantage is money. In past conflicts, Washington could easily outspend
adversaries. During World War II, the U.S. national debt-to-GDP ratio almost
doubled, from 61 percent of GDP to 113 percent. By contrast, the United States
would enter a conflict today with debt already in excess of 100 percent of GDP.
All of that pales
alongside the human costs that the United States could suffer in a global
conflict. Large numbers of U.S. service members would likely die. Some of the
United States adversaries have conventional and nuclear capabilities that can
reach the U.S. homeland; others have the ability to inspire or direct
Hamas-style terrorist attacks on U.S. soil, which may be easier to carry out
given the porous state of the U.S. southern
border.
“My gut tells me we
will fight in 2025,” U.S. Air Force Gen. Mike Minihan wrote in a January
memo to officers in the Air Mobility Command. The memo, which promptly leaked to reporters, warned that the United States and
China were barreling toward a conflict over Taiwan. The U.S. Defense Department
quickly distanced itself from Minihan’s blunt assessment. Yet the general
wasn’t saying anything in private that military and civilian officials weren’t
already saying in public.
In August 2022, a
visit to Taiwan by U.S. House Speaker Nancy Pelosi set off the worst cross-strait crisis in a quarter century.
China’s aircraft barreled across the center line of the Taiwan Strait; its
ships prowled the waters around the island; its ballistic missiles splashed
down in vital shipping lanes. Months after Russia’s full-scale invasion of
Ukraine had reminded everyone that major war is not an anachronism, the Taiwan
crisis made visceral the prospect that a Chinese attack on that island could
trigger conflict between the world’s two top powers.
Washington certainly took
note. A year earlier, the outgoing chief of U.S. Indo-Pacific Command, Adm.
Philip Davidson, had predicted that a war in the Taiwan Strait could come by
2027. After the August crisis, this “Davidson window” became something like conventional
wisdom, with Minihan, Secretary of State Antony Blinken, and other U.S. officials predicting that trouble might start even sooner. If the
United States and China do clash over Taiwan, it will be the war everyone saw
coming—which would make the failure to deter it all the more painful.
To be sure, U.S.
President Joe Biden has made deterring that conflict a priority. Despite the
long-standing policy of “strategic ambiguity,” Biden has publicly affirmed,
four times, that the United States would come to Taiwan’s aid if it were
attacked. Yet deterrence is about more than declaratory policy: It requires
assembling a larger structure of constraints that preserve the peace by
instilling fear of the outcome and consequences of war. More than a year after
the August crisis and nearly three years into the Davidson window, the United
States and its friends are struggling to build that structure in the limited
time they may have left.
Taiwan is important
in many ways—as a critical node in technology supply chains, as a
democracy menaced by an aggressive autocracy, and as an unresolved legacy of
China’s civil war. Yet Taiwan has become the world’s most perilous flash point
mostly for strategic reasons.
Taiwan is a “lock
around the neck of a great dragon,” as Chinese military analyst Zhu Tingchang has written. It anchors the first island chain, the string of
U.S. allies and partners that block China from the open Pacific. If China were
to take Taiwan, it would rupture this defense perimeter, opening the way to
greater influence—and coercion—throughout the region and beyond.
In 1972, Chinese
leader Mao Zedong told U.S. President Richard Nixon that Beijing could
wait 100 years to reclaim Taiwan. China’s current leader, Xi Jinping, is not so
patient. He has said the island’s awkward status cannot be passed from
generation to generation; he has reportedly ordered the People’s Liberation Army to be ready
for action by 2027. Militaries constantly prepare for missions they never
execute, of course. But the risk of war is rising as China’s capabilities—and
urgency—grow.
Beijing is reaping
the rewards of a multidecade buildup focused on the ships, planes, and other
platforms needed to project power into the Western Pacific; the
“counter-intervention” capabilities, such as anti-ship missiles and
sophisticated air defenses, needed to keep U.S. forces at bay; and now the
nuclear capabilities needed to enhance China’s options for deterrence and
coercion alike. The scale and scope of these programs are remarkable. Adm. John
Aquilino, Davidson’s successor at Indo-PacificCommand, said in April that China
has embarked on “the largest, fastest, most comprehensive military buildup
since World War II.” As a result, the balance is changing fast. By the late
2020s, several recent assessments
indicate, Washington might find it extremely hard to save Taiwan from a determined assault.
Xi would surely
prefer to take Taiwan without a fight. He currently aims to coerce unification
through military, economic, and psychological pressure short of war. Yet this
strategy isn’t working. Having witnessed Xi’s brutal crackdown in Hong Kong,
the Taiwanese populace has little interest in unification. Since 2016, the more
hawkish, pro-independence Democratic Progressive Party (DPP) has thumped the
more Beijing-friendly Kuomintang in presidential elections. If the DPP wins the
next presidential race in January 2024—its candidate, Lai Ching-te, currently
leads the polls—Xi might conclude that coercion has failed and consider more
violent options.
Biden knows the
threat is rising—he recently called China a “ticking time bomb”—which is why he has
repeatedly said Washington won’t stand aside if Beijing strikes. But make no
mistake: A great-power war over Taiwan would be cataclysmic. It would feature
combat more vicious than anything the United States has experienced in
generations. It would fragment the global economy and pose real risks of
nuclear escalation. So the crucial question is whether Washington can deter a
conflict it hopes never to fight.
China’s fundamental
advantages are proximity and the mass of forces it can muster in a war off its
coast. The U.S. advantage is that control is harder than denial, especially
when control requires crossing large contested bodies of water. An invasion of Taiwan,
with its oceanic moat and rugged terrain, would be one of history’s most daunting military operations, comparable to the Allied
invasion of Normandy in 1944. Options short of invasion, such as blockade or
bombardment, offer no guarantee of forcing Taiwan to submit. Given the risk
that a failed war could pose to Xi’s regime and perhaps his life, the Chinese
leader will probably want a high chance of success if he attacks. So the United
States and other countries should be able to inject enough doubt into this
calculus that even a more risk-acceptant Xi decides rolling the iron dice is a bad
idea.
This will require two
mutually reinforcing types of deterrence. “Deterrence by denial” convinces an
enemy not to attack by persuading him that the effort will fail. The ability to
deter invasion, in this sense, is synonymous with the ability to defeat it.
“Deterrence by punishment” convinces an enemy not to attack by persuading him
that the effort—even if successful—will incur an exorbitant price. The
strongest deterrents blend denial and punishment. They confront an aggressor
with sky-high costs and a low likelihood of success. The U.S. task in the
Western Pacific, then, is to show that Taiwan can survive a Chinese attack—and
that any such war will leave China far poorer, weaker, and less politically
stable than before.
In practice, this
approach would rest on five pillars: first, a Taiwan that can deny China a
quick or easy victory because it is bristling with arms and ready to resist to
the end; second, a U.S. military that can sink a Chinese invasion fleet,
decimate a blockading squadron, and otherwise turn back hostile forces trying
to take Taiwan; third, a coalition of allies that can bolster this denial
defense while raising the strategic price China pays by forcing it to fight a
sprawling, regionwide war; fourth, a global punishment campaign that batters
China’s economy—and perhaps its political system—regardless of whether Beijing
wins or loses in the Taiwan Strait; and fifth, a credible ability to fight a
nuclear war in the Western Pacific—if only to convince China that it cannot use
its own growing arsenal to deter the United States from defending Taiwan.
If these steps sound
awful to contemplate, they are. Deterrence involves preparing for the
unthinkable to lessen the likelihood it occurs. The United States and its
friends are making real, even historic progress in all these areas. Alas, they
are still struggling to get ahead of the threat.
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