In the border self-defense counterattack in 1979, the Chinese army advanced at lightning speed, occupied important places such as lang son and Gaoping, and then withdrew in time.
At that time, with the support of the Soviet Union, Vietnam continued to provoke the border, trying to contain China through the Cambodia issue. The scale of the war was limited, China's casualties were controlled within an acceptable range, while Vietnam suffered heavy losses, and its border defense system nearly collapsed.
The deep logic of this conflict is that China has safeguarded territorial integrity while warning of expansion ambitions. Today, the situation in Ukraine is similar: a small country is involved in a game of great powers, the Russian-Ukrainian conflict has escalated from the Donbass friction to a comprehensive warfare, and Ukraine relies on NATO assistance, but pays a heavy price in energy blockade and infrastructure destruction.
If Vietnam follows, the fishing vessel incident in the South China Sea or the island riot dispute could evolve into a larger confrontation.But in contrast, China is not Russia, and our response will be more accurate, more comprehensive, and will not give opponents breathing space.
Geographically, Vietnam is connected to China’s land and sea, and fishing cooperation in the North Gulf has become normal, with 29 joint bilateral patrol operations in the first half of 2025, far beyond the border control mechanism of Ukraine and Russia.
Historically, the border friction between the two countries lasted until the signing of a treaty in 1999 after the Vietnam War, and now it has become customary to resolve differences through diplomatic channels.
Ukraine’s lesson is that it has ignored the fragility of its energy lifecycle: the rupture of the Russian gas pipeline has led to a European energy crisis, and Ukraine’s GDP has shrunk by more than 20 percent.
In the eight months prior to 2025, imports of coal from China accounted for more than 40% of its total imports, cross-border power lines such as Yunnan to Vietnam's 500 megawatt direct flow project, directly supporting the operation of the Hanoi industrial district.
Looking at the economic link, China-Vietnam trade volume broke $2600 billion in 2024, the first quarter of 2025 has exceeded $90 billion, China's exports accounted for 70% of Vietnam's textile industry raw materials depend entirely on Chinese cotton, 60% of electronic components imports come from China.
This is not a simple buy-and-sale, but a deep embedding of the supply chain. Compared to Ukraine's agricultural exports being blocked, Vietnam's manufacturing industry is heavily dependent on China, and any confrontation will break its arms.
Although the United States imposed a 46% tariff on Vietnam’s footwear and furniture in April 2025 under the name of “balance deficit” in an attempt to pull it into the “Indo-Pacific strategy”, it is more like a double-edged sword.
Vietnam's surplus to the US exceeds $100 billion, but faces a 40% high tariff on shipping goods, forcing companies to adjust the chain. Vietnam cleverlyins neutrality, adhering to the position of "respecting sovereignty, resolving peacefully" in the Russian-Ukrainian conflict, not condemning Russia. This reflects its awareness of the game of great powers: involvement only increases losses.
Military comparisons are even more overwhelming facts.In the 2025 global firepower ranking, China ranks third, Vietnam struggles to squeeze into the top 50.China has 2 million active soldiers, a defense budget of 1.6 trillion yuan, and more than 400 naval ships, including Type 055 destroyers and aircraft carriers, and South China Sea cruise covers the entire area.
The Vietnamese army has 480,000 troops, with a budget of less than 1/10 of China's. There are only 36 main Su-30MK2 fighters. The first batch of F-16Vs imported from the United States will be delivered, but it will still take time to integrate the electronic countermeasure system.
Historically, during the Sino-Vietnamese War, China was dominated by T-59 tanks and 122mm howitzers, and firepower delivery relied on manpower; Nowadays, Beidou navigation and data link allow battlefield information to be shared in real time, and drone swarm tactics are inefficient and cost-effective.
Vietnam's Kilo-class submarines are six, air defense relies on the old S-75 system, radar networks cover more blind zones. If friction escalates in the South China Sea, China can block Malacca's entry through anti-ship missiles, and Vietnam's supply line is instantly paralyzed. This is similar to Ukraine's Donbass distress, but Vietnam lacks immediate NATO assistance, and the United States in the South China Sea only runs on aircraft carrier routes, not permanent bases.
Under the "Indo-Pacific Strategy", the United States regards Vietnam as the fulcrum to contain China. In the first half of 2025, the scale of U.S.-Vietnam joint military exercises was expanded, delivering five patrol boats and providing maritime training. But Vietnam's "four noes" policy-non-alignment, non-confrontation, no foreign bases, and no use of force-limits deep binding.
Historically, the Soviet Union assisted Vietnam with MiG-21s and missiles, directly increasing its border firepower; Nowadays, the aid of the United States is more hidden, hyping the "South China Sea version of Ukraine" through think tanks, but it is difficult to hide the pressure of tariffs.
In July 2025, although the U.S.-Vietnam trade agreement reduced tariffs to 20%, the terms for China's transshipment of goods put Vietnamese companies in a dilemma. Vietnamese leaders reiterated at the Shangri-La Dialogue that they will promote the negotiation of the South China Sea Code of Conduct (COC), which is expected to be completed by the end of the year. This is different from the Minsk Agreement in Ukraine and pays more attention to prevention and control. China is happy to see it happen, because COC will reduce unexpected friction and maintain regional stability.
China's transition from bilateral to multilateral, the substantive terms of the 2025 ASEAN Summit COC, the Vietnamese Defense Minister said passed at the end of the year.
This is different from the Oslo Accords in Ukraine, which focuses more on bilateral patrols. The Vietnamese army has shifted from the Soviet model to mixed procurement. In 2025, it will buy 20 BrahMos missiles from India with a range of 300 kilometers, but the number is limited and far less than China's Dongfeng series.
If the war were to be fought, China would not have any more room, because comprehensive deterrence has become the norm. In history, the withdrawal of troops after the war has shown goodwill; nowadays, military upsurge allows long-term pressure to be sustained and the economic leverage is stronger.
Vietnam's modernization, such as domestic K-31 missiles, has made progress, but the overall gap is widened and difficult to resist.In the geo-game, Vietnam needs a balance: a smooth turn will only repeat the situation in Ukraine, and the economic livelihood will be hit twice.
Although there were protests in the South China Sea, the North Gulf patrol went smoothly. These advances have allowed China and Vietnam to step into a new phase. Chinains its blue territory and Vietnam is guaranteed by its supply chain to promote ASEAN integration. In the long run, this model strengthens its neutral role and reduces space for intervention.
We believe that cooperation is the way out. Confrontation will only make small countries pawns, while big countries will protect peace with strength. This is not a threat, but a warning based on facts: history will not repeat itself, but lessons will last forever.