Vietnam’s Fighter Jet Showdown: Rafale or Su-57? Hanoi’s High-Stakes Air Power Gamble Could Reshape South China Sea Balance

(DEFENCE SECURITY ASIA) — Vietnam’s accelerating fighter fleet replacement program is rapidly evolving from a procurement decision into a strategic geopolitical signal that could reshape military deterrence dynamics across the South China Sea and wider Indo-Pacific security architecture.

As China expands the operational reach of advanced platforms such as the J-16 multirole fighter and J-20 fifth-generation stealth aircraft, Hanoi faces narrowing timelines to preserve credible air denial capability and maintain sovereign airspace control over increasingly contested maritime approaches.

The retirement of Vietnam’s aging Soviet- and Russian-era combat aircraft—particularly the Su-22 strike fighter and Su-27 air superiority platform—has transformed air force modernization from a long-term aspiration into an immediate national security requirement with regional strategic consequences.

Reports indicating that Vietnamese pilots have been granted the rare opportunity to test-fly the Dassault Rafale strongly suggest that discussions with France have entered a serious technical and operational phase rather than remaining at the level of exploratory diplomatic engagement.

At the same time, continued interest in Russia’s Su-57 fifth-generation fighter demonstrates that Hanoi is not pursuing a simple supplier switch, but rather a layered force posture strategy balancing combat capability, strategic autonomy, logistics continuity, and geopolitical hedging.

With defence budgets estimated between US$6 billion and US$10 billion annually—equivalent to approximately RM22.8 billion to RM38 billion—Vietnam’s next fighter acquisition will influence not only force structure, but also defence diplomacy and long-term alliance signalling.

Whether Hanoi chooses the French Rafale, the Russian Su-57, or a mixed fleet architecture combining both, the decision will determine how Vietnam positions itself militarily between Western interoperability and legacy Russian defence dependence for the next two decades.

READ:Vietnam Considers France’s Rafale Fighter as Hanoi Moves to Reduce Reliance on Russian Military Aircraft

Aging Soviet Fleet Creates Immediate Operational Pressure

The Vietnam People’s Air Force continues to operate an almost entirely Soviet- and Russian-origin fighter inventory, creating structural vulnerabilities as legacy platforms face declining readiness and rising sustainment costs under modern combat conditions.

The Su-22M4 fleet, estimated at roughly 25 to 36 aircraft, was originally designed for strike and attack missions, but its survivability has sharply declined against contemporary integrated air defence systems, advanced radar networks, and electronic warfare environments.

Recent accidents involving Su-22 aircraft have further amplified concerns regarding maintenance reliability, spare parts availability, and pilot safety, reinforcing the argument that continued retention imposes growing operational and financial risks.

Vietnam’s older Su-27 fleet, estimated at approximately 10 to 12 aircraft, was once the core of national air superiority doctrine, but the aircraft now faces increasing obsolescence against newer regional fourth-plus and fifth-generation fighters.

The Su-30MK2 remains the backbone of Vietnamese combat aviation, with approximately 35 to 45 aircraft providing multirole capability, maritime strike flexibility, and long-range patrol endurance across Vietnam’s strategically sensitive maritime approaches.

However, even the Su-30MK2 faces capability compression when measured against China’s expanding inventory of J-16 strike fighters and J-20 stealth aircraft, particularly in sensor fusion, electronic warfare resilience, and network-centric combat operations.

The requirement is therefore not merely platform replacement, but the creation of a survivable, data-linked, precision-capable air combat fleet able to operate inside contested South China Sea battlespace under high electronic and missile threat conditions.

Long-range patrol requirements over disputed waters demand aircraft with endurance, precision strike capability, maritime targeting performance, and secure battlespace awareness rather than traditional short-range air superiority doctrine built around legacy fighter concepts.

This modernization imperative explains why Hanoi is evaluating not only aircraft performance, but also the broader strategic implications of supplier diversification, weapons integration, and industrial dependence across the entire defence ecosystem.

 

Rafale Emerges as the Fastest Near-Term Option

French reporting in early 2026 indicated that discussions between Hanoi and Paris over the Dassault Rafale had reached an unusually advanced stage, suggesting that the aircraft has become a serious near-term procurement contender.

The reported opportunity for a Vietnamese pilot to conduct a Rafale test flight is particularly significant because such access is typically reserved for customers in mature evaluation stages rather than preliminary diplomatic defence engagement.

This development builds upon earlier French engagement, including a Rafale detachment visit to Vietnam in 2018, which helped establish initial operational familiarity and demonstrated France’s long-term intent to cultivate Hanoi as a strategic defence partner.

Open-source reporting suggests a possible acquisition scale of approximately two squadrons, or roughly 24 to 40 aircraft, with estimated program value ranging between US$4 billion and US$6 billion, equivalent to RM15.2 billion to RM22.8 billion.

If negotiations conclude by late 2026, initial deliveries could begin between 2028 and 2030, providing Vietnam with a realistic timeline for replacing the most urgent Su-22 retirement requirements without immediate disruption to existing Su-30 operations.

The Rafale offers strong multirole flexibility across air-to-air combat, precision strike, maritime interdiction, and strategic deterrence missions, allowing a single platform to absorb multiple operational roles across dispersed theatres.

Its RBE2 AESA radar improves detection and tracking performance against complex airborne threats, while the SPECTRA electronic warfare suite significantly enhances survivability against advanced missile engagement zones and integrated enemy air defence networks.

With ferry range approaching 3,700 kilometers and payload capacity exceeding nine tons, the aircraft is structurally suited for long-range South China Sea missions where persistence and multi-mission flexibility directly affect deterrence credibility.

Rather than replacing the entire Russian fleet immediately, Rafale would allow Vietnam to retire the Su-22 first while preserving Su-30MK2 continuity, thereby reducing transition shock and creating a phased modernization pathway with lower operational disruption.

Rafale Also Carries Strategic Diplomatic Weight

A Rafale acquisition would represent far more than a fighter purchase because it would signal Vietnam’s deliberate move toward supplier diversification and strategic balancing without formally abandoning its long-standing defence relationship with Moscow.

This mirrors procurement models already visible in Asia, where countries such as India and Indonesia have used Rafale acquisition to strengthen Western defence ties while retaining major Russian-origin force structures and sovereign decision-making flexibility.

Indonesia’s order for 42 Rafales provides a regional precedent showing that Southeast Asian operators increasingly view Western fourth-and-a-half-generation fighters as strategic instruments rather than purely tactical combat platforms.

For Hanoi, diversification reduces vulnerability to Russian supply-chain instability, which has intensified due to sanctions pressure, industrial strain, and wartime production demands associated with the Ukraine conflict.

The challenge is that Rafale integration would require entirely new maintenance ecosystems, training pipelines, weapons procurement structures, and operational doctrine adaptation because Western systems remain largely incompatible with existing Russian munitions stocks.

Pilot conversion, ground crew retraining, simulator infrastructure, secure datalink architecture, and new sustainment contracts would significantly increase the total lifecycle cost beyond the initial aircraft procurement figures often cited publicly.

Western munitions acquisition would also alter Vietnam’s defence planning assumptions, as operational dependence would shift from Soviet-standard inventories toward new missile, logistics, and software support arrangements requiring long-term strategic trust.

Yet that very shift could strengthen Vietnam’s diplomatic posture by expanding strategic relationships with European defence partners and reducing excessive concentration risk associated with dependence on a single military supplier.

In an era where military procurement increasingly reflects geopolitical positioning, the Rafale offers Hanoi not only air combat capability, but also strategic signalling toward a more balanced and diversified Indo-Pacific defence posture.

Su-57 Preserves Russian Continuity and Fifth-Generation Ambition

Parallel to Rafale discussions, Vietnam continues to maintain interest in Russia’s Su-57, reflecting a longer-term ambition to secure fifth-generation air superiority capability while preserving continuity with existing Russian military infrastructure.

Vietnamese defence discussions regarding the Su-57 date back to at least 2017, with recurring analysis suggesting a potential acquisition of approximately 12 to 24 aircraft intended to replace older Su-27 fighters and selected Su-22 units.

Recent reporting in April 2026 reaffirmed that the Vietnamese Ministry of Defence remains interested in the aircraft, particularly as the enhanced Su-57M1 configuration is expected to mature during the early 2030s.

The Su-57 offers strategic advantages for Vietnam because long-range patrol requirements over the South China Sea reward aircraft capable of extended endurance, reduced radar visibility, and deep engagement from domestic operating bases.

Compatibility with existing Russian-origin infrastructure—including Su-30 fleets and S-300PMU-2 air defence systems—would significantly reduce integration friction compared to a full Western transition and preserve established maintenance familiarity.

This continuity lowers training and sustainment barriers while allowing Vietnam to preserve institutional knowledge built around Russian aerospace doctrine, weapons employment philosophy, and logistics architecture developed over several decades.

Russian sources also emphasize combat lessons drawn from operations in Ukraine, arguing that sensor improvements, survivability refinements, and weapons integration have strengthened the export credibility of the evolving Su-57 platform.

For Moscow, Vietnam represents one of the most strategically valuable potential export customers, particularly as Algeria reportedly began first deliveries in 2025 and Russia seeks credible international validation for its flagship stealth fighter.

However, program maturity questions remain significant because delivery timelines, industrial output rates, sanctions exposure, and long-term sustainment reliability continue to shape uncertainty around whether Su-57 procurement can meet Vietnam’s operational deadlines.

READ: Leaked Rostec Files Expose Vietnam’s Hidden USD 8 Billion (RM 38 Billion) Su-35 Fighter Jet Deal with Russia Amid Rising South China Sea Tensions

Hanoi’s Most Likely Path Is a Mixed Fleet Strategy

The strongest strategic logic may not lie in choosing between Rafale and Su-57, but in constructing a mixed fleet architecture that distributes operational roles across complementary platforms while reducing strategic dependency on any single supplier.

Under this model, Rafale would serve as the near-term multirole strike and maritime operations platform replacing the Su-22, while upgraded Su-30MK2 fighters continue as the numerical backbone of immediate force posture stability.

The Su-57 would then enter later as a higher-end air superiority and stealth penetration asset designed to replace the oldest Su-27 platforms and provide a credible response to regional fifth-generation competition.

Such an approach resembles India’s model of combining Sukhoi heavy fighters with Rafale multirole platforms, using doctrinal specialization rather than uniform fleet replacement to maximize flexibility and strategic resilience.

This structure would allow Hanoi to preserve Russian infrastructure advantages while gradually building Western interoperability, thereby avoiding abrupt operational disruption or politically destabilizing dependence on a single strategic bloc.

It would also align with Vietnam’s broader defence diversification trend, which increasingly includes procurement engagement with Israel, South Korea, and exploratory consideration of American-origin systems such as previous F-16 discussions.

No official confirmation has been issued by Hanoi regarding either Rafale or Su-57 procurement, meaning all figures, timelines, and force structure assumptions remain based on defence reporting and analytical assessment rather than formal contract announcements.

Yet the speed of South China Sea military competition means indecision itself carries strategic cost, particularly when neighbouring air forces continue to modernize around longer-range sensors, stealth platforms, and precision-guided strike networks.

Vietnam’s next fighter decision will therefore be judged not by procurement headlines alone, but by whether it creates a survivable combat air force capable of deterring coercion in one of the world’s most militarily contested maritime theatres.