Reflecting on Sino-American Cooperation and China’s War of Resistance on the Eve of America’s 250th Anniversary

稀土产业研究

2026-07-06

——An Alliance Across Mountains and Seas

From 1776 to 2026, the United States marks 250 years as a nation. Looking back across this vast historical trajectory, there was a unique point of convergence in Sino-American relations during the 20th-century anti-fascist war. At a critical juncture when the Chinese nation was fighting for its survival and independence against Japanese militarist aggression, China and the United States formed a strategic partnership under the framework of the Allied Powers. Together, they shaped the course of the East Asian theater in World War II and profoundly influenced the structure of the post-war international order.

The significance of this historical process lies not merely in the outcome of the war itself, but in how it propelled China—from a century of unequal treaties—toward sovereign integrity and an independent standing within the international system.

I. The War Fighter and Protracted Resistance: The Strategic Backbone of the China Theater

Following the full-scale outbreak of the War of Resistance in 1937, China became one of the longest-standing major battlefields of World War II. Under extremely unfavorable industrial and military conditions, China engaged in prolonged attrition and strategic containment, trapping the main force of the Japanese Army on the Chinese mainland and preventing its expansion in other directions.

The core structure of this phase was defined by:

China bearing the primary pressure of the ground war.
The continuous depletion of Japan’s war resources.
The "locking" of the Asian war within the Chinese theater.

From a strategic perspective, the mere existence of the Chinese theater created a crucial window of time for the subsequent Allied counteroffensive in the Pacific. This function constituted a fundamental variable in the East Asian strategic landscape.

II. Formation of the Alliance and External Support: America’s Systemic Intervention

After the outbreak of the Pacific War in 1941 and the formal entry of the United States into the conflict, Sino-American relations shifted from indirect support to institutionalized alliance cooperation. This change significantly altered the external environment of China's War of Resistance.

1. Material and Financial Support Systems

Under the Lend-Lease Act, the United States provided massive aid to China, including weapons, equipment, communications materials, and financial credit. This included hundreds of millions of dollars in loans and supplies used to sustain the wartime economy and military apparatus.

Objectively, this aid alleviated the pressure on China's wartime industrial and fiscal systems. More accurately, however, it served as an"external supplement"to the existing framework of resistance.

2. Air Supply and Joint Air Combat Systems

With the Burma Road blocked, China and the U.S. jointly opened the "Hump Route," a vital aerial corridor for importing supplies. Under extreme geographical and meteorological conditions, this route undertook critical strategic transport missions at a significant cost in lives and aircraft.

Simultaneously, the American Volunteer Group ("Flying Tigers") led by Claire Lee Chennault, and later the 14th Air Force, participated in air operations in the China Theater, containing Japanese air power. It is essential to note that the effectiveness of this system relied entirely on the synergy between the respective operational frameworks of both nations.

III. Strategic Turning Point and Theater Coordination: From Isolated Conflict to Global Structure

After the U.S. entry into the war, the East Asian conflict ceased to be isolated and was integrated into the global anti-fascist system.

Within this structural shift:

The Chinese theater continued to contain the bulk of the Japanese Army.
The United States gradually established a counteroffensive system in the Pacific.
The Soviet Union and other Allies formed a multi-theater pressure structure.

The sustained containment by China interacted with the advance of the Pacific theater, continuously compressing Japan's strategic space. From a global perspective, this was a process of"convergent multi-theater interaction,"rather than the result of a single decisive force.

IV. Post-War Order Reconstruction: Restoration of Sovereignty and Status

Following the war, the U.S., Britain, China, and other nations forged a series of institutional arrangements based on wartime foundations, which had a profound impact on China's national status.

1. Termination of the Unequal Treaty System

In 1943, China and the U.S. signed a new treaty in which the United States renounced extraterritoriality and other special privileges in China. This change signaled the beginning of the collapse of the century-old unequal treaty system, leading other nations to subsequently adjust their own arrangements. This process was essentially a reconstruction of the international legal order under the framework of the wartime alliance.

2. The Cairo Declaration and Territorial Arrangements

In 1943, China, the U.S., and Britain issued the Cairo Declaration, explicitly stating that territories occupied by Japan, such as Taiwan and the four northeastern provinces, should be restored to China. This document became a cornerstone of post-war territorial arrangements and continues to influence the status of regions like Taiwan and the Northeast.

3. Changes in Seats within the International System

China became a founding member of the United Nations and a permanent member of the Security Council. This status was the result of a combination of factors: wartime contributions, shifts in the international balance of power, and great-power negotiations.

V. A Structural Understanding of History: The Interplay of Agency and External Factors

Reflecting on this historical process reveals two simultaneously valid structural facts:

On one hand, the Chinese people endured immense sacrifice over fourteen years of resistance, forming the fundamental basis for the war's continuation. On the other hand, the participation and support of allies like the United States acted as a crucial external catalyst and amplifier for the progression of the war and the reconstruction of the post-war order.

A more accurate historical understanding is this:

China's War of Resistance was a war of subjective persistence; the support of the U.S. and other allies constituted an external acceleration mechanism; and the post-war international order was a structural outcome formed through the interaction of multiple forces.

Conclusion: From Historical Alliance to the Possibility of Future Coexistence

Looking back at Sino-American cooperation during WWII, it was not an abstract idealistic narrative, but a practical strategic collaboration forged by common enemies and objectives under extreme crisis. This history changed the course of the war and helped shape the basic framework of the post-war international order.

The continuity of history is reflected not only in narratives of past victory but in the reorganization of contemporary relations.

Since the turn of the 21st century, Sino-American relations have undergone complex evolution, yet the two nations remain deeply intertwined across multiple dimensions. From the global economic system to climate governance, from technological innovation to public health security, the bilateral relationship has transcended simple bilateralism to become a critical variable affecting the global structure.

Amidst the positive signals released in recent high-level exchanges and summit interactions, the consensus to "manage differences in a constructive manner and expand the space for cooperation" has been further reinforced. This logic of interaction, based on shared interests and global responsibility, suggests that Sino-American relations still retain a window of possibility for stability and cooperation.

The experience of the WWII alliance cannot be simply replicated, but it confirms a basic fact: when two major powers can achieve a minimum level of strategic coordination at critical historical junctures, it can alter the trajectory of bilateral relations and create positive spillover effects for global order.

The true challenge for the future of Sino-American relations lies not in returning to the past, but in finding a new structural balance that allows for coexistence, competition, and cooperation in parallel.

If cooperation during WWII contributed to the end of an old world order, then today, amidst highly intertwined global risks, Sino-American interactions may still provide a minimal coordinating framework for humanity to face shared challenges in climate, security, and development.

History does not guarantee an optimistic ending, but it always preserves the possibility of cooperation. The same holds true for Sino-American relations.

In this sense, interactions across mountains and seas are not merely memories of the past; they remain an unavoidable variable in the evolution of the world order to come.

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稀土产业链深度研究报告与资讯。稀土之于我，不只是产业，更是一种恒定的牵引力；我就像那不参与化学反应的 4f 电子，始终在内层轨道守望着它。

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稀土产业研究稀土产业链深度研究报告与资讯。稀土之于我，不只是产业，更是一种恒定的牵引力；我就像那不参与化学反应的 4f 电子，始终在内层轨道守望着它。

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