Unspoken truth about strategic flexibility: Korea must face reality

Chun In-bum

Public debate over U.S. "strategic flexibility" has resurfaced, stirred by speculation that American forces stationed in South Korea may be deployed elsewhere — most notably, to potential conflicts in the Taiwan Strait. While politically convenient for some, such speculation reflects a deep misunderstanding of history, strategic doctrine and the realities of the alliance.

Let’s set the record straight: The United States has never wavered in its position on strategic flexibility. Since day one, Washington has maintained that its global forces — wherever stationed — are subject to redeployment based on evolving strategic needs. The only difference now is that this long-standing position has finally broken through to public consciousness. The fault lies not with Americans for holding their ground, but with Koreans for failing to confront what that ground has always meant.

If tensions between the U.S. and China escalate into armed conflict, Korea’s involvement — direct or indirect — is inevitable. The idea that we can remain neutral or uninvolved is a fantasy. Even short of war, Korea’s location and obligations to its allies place it squarely within the sphere of operational consequence. Our participation may take the form of logistical support, intelligence sharing, rear-area basing or strategic messaging. But we will be called upon — not just out of loyalty to the alliance, but because the geopolitical outcomes of such a conflict will directly affect our security. At a minimum, Korea should assume a mediating role, urging de-escalation and restraint. But if push comes to shove, we must be prepared to make a clear and unambiguous choice. The era of strategic ambiguity is over.

One persistent myth is that U.S. Forces Korea (USFK) will be dispatched to Taiwan in the early stages of a contingency. This is neither logistically sound nor strategically optimal. Fighter aircraft based in Korea cannot reach Taiwan without multiple aerial refuelings — a cumbersome and inefficient approach. In reality, such assets would first be redeployed to bases closer to the Taiwan Strait before being committed.

The U.S. maintains its presence in Korea not to fight wars elsewhere, but to deter conflict on the Peninsula. With North Korea’s unpredictability and China’s potential to open a second front through Pyongyang, any drawdown of USFK would be a miscalculation of the highest order. If anything, now is the time to reinforce — not restrict — strategic flexibility. Doing so strengthens the very deterrent that has preserved stability here for over 70 years.

Ironically, the greater danger lies not in Washington’s intentions but in Seoul’s own military readiness. Today, discipline is lax, morale is low and training is inconsistent. The national obsession with expensive high-tech systems masks a fundamental decay in unit cohesion, war-fighting skills and operational resolve. If Korea is to stand on its own feet, reform must begin with people, not platforms. Career soldiers must be respected, better compensated and given meaningful roles. Otherwise, we risk maintaining a hollow force — impressive on paper, inadequate in a crisis.

On a different but related subject, much of the political noise around defense burden-sharing misses the point. The issue isn’t how much Korea pays, but how it invests. Every won must strengthen deterrence, interoperability and alliance credibility. Expanding programs like the KATUSA program, where Korean troops serve alongside American soldiers, not only enhances bilateral effectiveness but also accelerates the professionalization of our own armed forces. We should focus less on percentages and more on outcomes.

Far from being a liability, strategic flexibility offers Korea a unique opportunity. By openly embracing it, we affirm ourselves as a mature, responsible ally — and in doing so, we gain leverage in broader discussions on nuclear planning, defense procurement and operational strategy. Rather than clinging to outdated notions of sovereignty tied to troop location, we should assert real sovereignty — the capacity to defend ourselves and shape our destiny, not merely react to the moves of others.

Strategic flexibility is not a Trojan horse. It is a strategic fact. Korea must stop reacting with alarm every time the U.S. acts in accordance with its stated policies. The real question is whether we have the courage to act in our own best interest — not in theory, but in practice. That means reinforcing U.S. deterrence on the Peninsula and building a credible, self-reliant Korean military. It means telling the truth to our citizens about alliance dynamics, not comforting them with myths. It also means demanding more from our leaders, who often chase applause at the expense of national security.

The time for illusions has passed. The world is becoming more dangerous. Our adversaries are watching. Our allies are waiting. And history is already beginning to take notes. The question is not whether Korea will be involved. The question is whether we will be prepared.

Chun In-bum is the former commander of the Republic of Korea Army Special Warfare Command.