From Karabakh to the Iran war, Baku keeps testing its own limits.
Azerbaijan’s conduct through the 2026 war between the United States, Israel, and Iran fits a pattern stretching back years: a small state repeatedly testing how far it can push bigger neighbors before pulling back. A new Institute for National Security Studies assessment by Elie Houé describes Baku’s wartime posture as alignment tempered by restraint rather than genuine neutrality. Read together with the years before it, that same formula- assert forcefully, then de-escalate before the cost outruns the gain- looks like the throughline of Azerbaijan’s rise.
Karabakh Set the Template
The pattern began with Nagorno-Karabakh. Azerbaijan’s 2020 offensive and the final campaign that dismantled the breakaway republic in 2023 ended three decades of stalemate and reversed a defeat that had defined the country’s post-Soviet identity. It was the first time Baku demonstrated that it would use force to settle a frozen conflict on its own terms rather than wait for international mediation, and it reset the region’s balance of power in Azerbaijan’s favor.
Standing Up to Moscow
The second test came from Russia. When a Russian Pantsir-S1 air defense system downed Azerbaijan Airlines Flight 8243 near Grozny on December 25, 2024, killing 38 people, the Kremlin’s initial response was denial and deflection. Baku did not let it go. President Ilham Aliyev demanded a formal admission of guilt rather than the vague condolences Moscow first offered, and Azerbaijan kept the pressure on for nearly a year, closing Russian state media offices and threatening an international lawsuit. On October 9, 2025, Putin admitted that Russian missiles had destroyed the aircraft. Extracting that admission from a country Azerbaijan had once depended on for security was itself a marker of how much Baku’s leverage had grown.
The Iran War as the Latest Test
The 2026 Iran war repeated the formula on a larger and more dangerous stage. INSS frames Azerbaijan as Tehran’s most uncomfortable northern neighbor: a secular, Turkic, Shia-majority state bound to Israel through arms, energy, and intelligence cooperation, and to Washington through a deepening strategic partnership. Baku publicly denied any role in the war that began on February 28, when the United States and Israel opened what INSS calls Operation Epic Fury with a strike that killed Supreme Leader Ali Khamenei. Aliyev even visited Iran’s embassy on March 4 to sign a condolence book. A day later, drones launched from Iranian territory struck Nakhichevan, Azerbaijan’s exclave on the Iranian border, and, according to Reuters, hit the airport terminal, an area near a school, and other civilian sites, injuring four people. Houé finds it more likely than not that the strike was a deliberate signal from Tehran over Baku’s wartime cooperation with Israel rather than a rogue unit’s mistake.
Aliyev’s answer mirrored his response to Moscow the year before: sharp rhetoric and a hard line, followed by a fast off-ramp once the point had been made. According to Eurasianet, he condemned the strikes as terrorism, recalled his ambassador, and moved troops to the border while invoking “iron fist,” the codename of the 2020 Karabakh offensive. Within days, however, Baku and Tehran were de-escalating: presidents Aliyev and Masoud Pezeshkian spoke by phone on March 8, and Azerbaijan reopened its border crossings within four days, according to Responsible Statecraft. Azerbaijan followed with more than 110 tons of humanitarian aid to Iran, a gesture Houé ties partly to Baku’s own relationship with the ethnic Azeri population inside Iran, estimated at a sixth to a quarter of the country’s total, though he notes Baku’s actual influence over that community remains limited.
What Baku Gets for the Risk
The reward for absorbing that risk has been growing regional weight. Houé notes that Israeli strikes on Iran’s Caspian naval base at Bandar Anzali degraded the force best positioned to threaten Azerbaijan’s own offshore gas platforms, while the wider war pushed shippers toward the South Caucasus as one of the only secure corridors left linking Europe and Asia, a shift JAMnews reported drove a surge in trans-Caspian demand. That corridor, the Middle Corridor, is where Baku’s ambitions now converge most clearly with the wider trend that the war accelerated.
The Middle Corridor Payoff
The Middle Corridor, formerly the Trans-Caspian International Transport Route, links China to Europe through Kazakhstan, the Caspian Sea, Azerbaijan, Georgia, and Turkey, bypassing both Russia and Iran entirely. According to the World Economic Forum, Azerbaijan has spent decades turning its geography into leverage, building the Baku-Tbilisi-Kars railway and the Baku-Tbilisi-Ceyhan pipeline, and now sits at a stretch of the corridor that nearly all China-Europe freight avoiding Russia must cross. One analysis found that just 190 kilometers of the roughly 5,000-kilometer span between the Barents and Arabian Seas, Azerbaijan’s own Ganja Gap, can carry that traffic without touching Russian or Iranian territory, making Baku one of the more consequential logistical chokepoints most people have never heard of. China has invested hundreds of millions of dollars in Baku’s ports as part of this push, and container traffic on the route grew sharply through 2025 alone.
The Constraint That Remains
None of this makes Azerbaijan’s rise unconditional. Houé’s central point about the Iran war, that alignment with Israel and Washington makes Baku a target as well as a beneficiary, extends to the corridor strategy too. The TRIPP link through Armenia, meant to complete Azerbaijan’s westward route, depends on a peace process that keeps stalling on constitutional demands Yerevan’s government cannot yet meet, according to EVN Report. Seen across Karabakh, the reckoning with Moscow, and the Iran war, Azerbaijan’s growing regional weight rests on the same formula each time: assert leverage against a larger neighbor, absorb the resulting exposure, then negotiate a return to stability that leaves Baku better positioned than before. Whether the Middle Corridor lets Baku convert that pattern into something more permanent, a durable role as Eurasia’s transit hub rather than a repeatedly renewed bet, is the open question the region is now watching.
