By Eric Vandenbroeck and co-workers
How a Convergence of Factors Could Tempt
Beijing to Act
In 2021, U.S. Navy Admiral Philip Davidson, then the commander of the
Indo-Pacific Command, testified before the U.S. Senate Committee on Armed
Services that Beijing had set a serious goal of controlling Taiwan before 2027.
“Taiwan is clearly one of their ambitions before then,” he warned. “And I think
the threat is manifest during this decade, in fact, in the next six years.”
This prediction,
which gained so much attention in Washington that it came to be known as the
Davidson Window, quickly spurred action. Within the year, Congress authorized
$7.1 billion for the newly created Pacific Deterrence Initiative, designed to
boost the United States’ capability to deter Chinese military adventurism, and
the policy community scrambled to develop strategies to counter Chinese
military threats. The U.S. government offered so much diplomatic, political,
economic, and security support to Taiwan that some veteran Taiwan watchers
began to remind U.S. policymakers of the importance of reassuring China that
the United States doesn’t support Taiwan independence.
In the past few
years, however, many observers began to question the Davidson Window. They
think China’s military is not ready for such a
difficult operation—and for good reasons. An amphibious landing followed by an
assault on a mountainous island like Taiwan would be operationally difficult.
And China’s military is embroiled in rounds of purges that have ousted numerous
senior generals. The costs and consequences of Russia’s war in Ukraine,
meanwhile, have demonstrated the difficulty of a takeover and the devastating
result of sanctions. China has enough other priorities, the theory goes, that
Taiwan is unlikely to be on the agenda today.
But what this theory
misses is that the Chinese view on Taiwan changed
significantly in 2025. In the past year, China has been highly vocal about the
inevitability and indisputability of what it calls its “reunification” with
Taiwan. Although skeptics would say China has always made these claims, this
time something is different: this time, China believes it. The Chinese policy
community is increasingly convinced that an effort to assert control of Taiwan
will happen, and it could even be imminent if Taiwan does something to provoke
Beijing. The fundamental driver of this new assessment is U.S. politics and the
perception that U.S. President Donald Trump has little interest in defending
Taiwan militarily. Augmenting it is Chinese leader Xi
Jinping’s own tenacious pursuit of unification and the decline in
popularity of Taiwanese President Lai Ching-te. In
other words, China sees an opportunity that may not arise again
down the road.
There are moments in
history when multiple internal and external factors act jointly to promote a
certain outcome—when “perfect storms” brew and the seemingly unimaginable
starts to take hold. Given the current circumstances, such a perfect storm for
Taiwan might be coming sooner than people think.

The Xi Legacy
Although Xi has
instructed the People’s Liberation Army (PLA) to be ready to take Taiwan by
force by 2027, it is hard to imagine that China would take action that year.
The Chinese Communist Party will have its 21st Party Congress in the fall of
2027, and in Chinese politics, the priority during any given party congress
year is absolute stability. All decisions are evaluated first and foremost
against whether they could cause even the slightest possibility of political
uncertainty. The CCP is a fundamentally conservative organization, and any
major decisions that could challenge the delicate balance of power within the
party during a time of heightened intraparty politics would likely be
postponed.
But 2027 is critical
for another reason: it marks the end of Xi’s third
term in charge. Discussions about the succession plan for Xi, who will be
74 years old at that time, have been quiet but ongoing. The dominant theory
among observers is that Xi won’t hand over power all at once, but as early as
2027 he could give up one of the three top leadership roles: president (head of
the government), general secretary of the party, and chairman of the Central
Military Commission. He would then incrementally give up
the others, with the option to suspend or abandon this process at any time.

Above Hu Jintao been taken away on orders of
President Xi.
Since 1949, the CCP leadership has made different decisions
about succession regarding these three positions. Mao Zedong gave up the
presidency in 1959 after being challenged within the party, but he retained the
position of general secretary of the party and the
chairmanship of the Central Military Commission. Deng
Xiaoping gave up all three when he handed over power to Jiang Zemin in 1989, but he maintained
unparalleled authority behind the scenes through the Central Advisory
Commission, a consultative body composed of party elders. In 2002, Jiang Zemin
gave up the presidency and relinquished his position as general secretary of the
party but retained leadership of the military for another three years—well into
Hu Jintao’s first term. And Hu gave up all three to
Xi when he stepped down.
If a succession
process begins soon, many observers predict Xi will give up the presidency
first, as it has the least power of the three. Handing over any title, however,
would jeopardize absolute consensus within the system. With power
decentralized, any military plan to take over Taiwan would likely be postponed.
It is entirely
possible that 2027 may come and go with Xi launching a fourth term fully in
charge. Xi does not have to step aside, nor does he have to take control of
Taiwan—it is not a defined key performance indicator for Xi, just as it was not
for any of his predecessors. But Xi, more than any previous leader, has pushed
harder for bringing Taiwan to heel. If Xi has a chance
to achieve his goal of “reunification,” he is likely to take it.

Now or Never
So far, a fundamental
reason Xi has not used force against Taiwan is that it is uncertain whether
such an operation can succeed. This question of success has always depended on
how the United States would respond to a Chinese attack. China is now convinced
that it is unlikely to see a U.S. president more indifferent toward Taiwan and
more unlikely to intervene militarily in the Taiwan Strait than Donald Trump. The recently released U.S. National
Security Strategy, which prioritizes the Western Hemisphere and proclaims a
“predisposition to non-interventionism,” supports this perception since it
forgoes any designation of China as a threat or a challenge to the United
States. The Trump administration’s mostly muted response to China’s December
2025 military exercise encircling Taiwan was also encouraging. Then, in early
January, Trump’s decision to capture Venezuelan President Nicolás Maduro
confirmed the United States’ Western Hemisphere priorities.
Yet this shift in
U.S. strategic priorities—and its approach to China—may be present only for the next three years. The shift
could even fade after the U.S. midterm elections in November this year if the
Democrats take control of Congress and Trump’s base loses enough steam. The
window of opportunity is therefore limited: China may never again have a moment
when Washington is so reluctant to intervene on Taiwan’s behalf.
Traditionally, China
has played the long game based on the logic that once it surpassed the United
States in economic and military might, it could naturally prevent the United
States from defending Taiwan. Such an optimistic vision peaked during the first
year of the COVID-19 pandemic when China was convinced that because
“the east is rising and the west is declining,” as the common CCP phrase terms
it, it would soon be able to force the United States out of the region. But the
past six or so years of great-power competition has demonstrated that China’s
desired endgame might not transpire as soon as it hoped. Instead of waiting
indefinitely, China is realizing that Washington’s current indifference may
offer the best opportunity to realize its unification dream.

Russia’s war in Ukraine
also shapes China’s window of opportunity. The war has been a major distraction
for U.S. grand strategy: the Biden administration was unable to focus on China
the way it wanted to, and the second Trump administration has been pulled from
its desired focus on homeland security and the Western Hemisphere. As long as U.S. attention and resources are bogged down in
Europe, it is less likely that Washington would want to confront China in the
Pacific. But if the Ukraine war draws to a close, China’s advantage could
disappear.
Trump’s actions have
also boosted China’s position by affecting Taiwan’s domestic politics. In 2025,
Trump imposed 20 percent tariffs on Taiwan; in the trade deal just reached,
Taiwan agreed to invest at least $250 billion in chip production in the United
States in exchange for lowering tariff rates to 15 percent. His
conciliatory approach to China and indifference to Taiwan as a democracy,
meanwhile, raised broad concerns that he could be seeking a grand bargain with
China that could involve trading economic benefits for endorsing China’s
position on Taiwan. These moves have hurt the ruling Democratic
Progressive Party in Taiwan and its leader, Lai, whom Beijing distrusts and
believes is promoting Taiwanese independence. Last summer, Lai supported a
grassroots effort to recall legislators from the opposition Kuomintang, but it
failed, leading to a further drop in Lai’s popularity. The changing public
opinion in Taiwan gives Beijing hope that the Taiwanese people are finally
abandoning the pro-independence DPP and may even embrace unification.
At this critical
juncture, any Taiwanese action that is perceived as provocative could trigger a
major reaction from China, as seen in December, when the United States
announced an $11.1 billion arms deal with Taiwan and, 11 days later, China
launched a military exercise that simulated a blockade of Taiwan. Despite its
large size, the arms deal is seen by the Chinese more as Trump’s promotion of
U.S. defense industry interests and less as a commitment to defend Taiwan. Its
December exercise, the largest yet of its kind, was the seventh major military
exercise since former U.S. Speaker of the House Nancy Pelosi’s visit to Taiwan
in August 2022—all of which have escalated China’s rehearsal for a decisive
campaign.

Cost-Benefit Analysis
The CCP and its
leaders are risk-averse by default. In fact, the bigger the stake, the more
conservative they are. On something as significant as Taiwan, they would not
decide to act lightly. Before they make any moves, they need to have confident
answers to two questions: Is the army ready to fight and win? And is the
country ready to handle the consequences?
The common wisdom is
that the People’s Liberation Army is clearly not prepared to fight the United
States. Xi has overseen rounds of purges of senior military leaders, which have
undermined the institution’s morale and spirit. Senior officers fear for their
own future, which makes it an undesirable time to test their resolve and
capabilities with such a critical mission. In particular, the purged generals
from the 31st Army Corps are seen as the ones with the most knowledge and
experience in preparing for a Taiwan operation, and their removal may have
damaged that historical know-how.
But the question of
the PLA’s readiness is relative to whom the PLA will fight against. If U.S.
intervention is not in the cards, the PLA can easily outmatch Taiwan’s forces.
The PLA boasts more than two million active military personnel, in contrast with
Taiwan’s 170,000 troops. China’s defense budget in 2025 was $247 billion,
whereas Taiwan’s defense budget in 2026, after a massive 16 percent increase,
is still only $31 billion. Taiwan passed an additional $40 billion special
defense budget in 2025, but it will cover only the eight years between 2026 and
2033. The disparity in military forces is so large that Taiwan cannot catch up.
Trump has not commented on whether the United States would defend Taiwan, but
the assumption of U.S. intervention is much weaker than before.

Whether China can
stomach the external consequences of an invasion also hinges on how the United
States reacts. If Beijing thinks that, after an attack on Taiwan, the United
States and its allies would impose crippling economic sanctions on China, the
costs would give policymakers pause and they would
likely wait to fight another day. But, in its recent trade war with Trump,
Beijing effectively used rare earth and tariff retaliation to force
Washington’s hands. After this victory, Beijing may see any potential U.S.
sanctions as moderate while other countries’ ability to rally and punish China
is far less concerning. In Trump’s attempt to broker peace between Russia and
Ukraine, meanwhile, Trump has also accommodated Russia’s territorial claims.
Since China sees Taiwan as rightly and squarely within its sphere of influence,
this has also been encouraging.
This is not to say
that China will attack Taiwan immediately: there are no visible signs of troop
mobilization, logistical preparation, or government policy changes that point
to an imminent attack. Nonetheless, in the past, Beijing has delayed action on
Taiwan because it knows it cannot risk action that would fail, and it felt
confident about its strategy for “peaceful reunification”—that the rise of
China would eventually make Taiwan want to unify with it. That calculation is
now changing—both because the past several years of great-power competition has
shaken Beijing’s timeline about its ascent and because its confidence about a
forceful bid for Taiwan is growing. Washington must realize that the current
combination of factors offers what Beijing could perceive as its best
opportunity to take Taiwan.
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