Three years on from October 7, the Middle East's power map has been redrawn

Three years after the October 7 attacks on Israel and the launch of Israel's war in Gaza, the Middle East has been transformed by sustained conflict, economic strain and a dramatic collapse of the region's old balance of power, according to an analysis published on October 8, 2026. The upheaval has weakened Iran's alliance network, dented confidence in the United States as a security guarantor and pushed states across the region to seek new partners and pacts to protect themselves.

Iran has perhaps suffered the most visible damage to its regional standing. The web of allied militias and political movements that long underpinned Tehran's influence — spanning Lebanon, Syria, Iraq, Gaza and Yemen — has been badly degraded by Israeli military operations. The notable outlier is Yemen's Houthi movement, which has retained both its cohesion and its ability to threaten shipping lanes, keeping a degree of Iranian leverage alive even as much of the network frays.

Israel, by contrast, has achieved several high-profile military successes. Senior leaders of Hezbollah and Hamas have been killed in successive strikes, decapitating parts of both organisations. Iran's own supreme leader, Ayatollah Ali Khamenei, was assassinated in February 2026, a stunning blow to the leadership of Israel's principal state adversary. Israeli forces now control most of Gaza, where more than 74,000 Palestinians have been killed and large areas of the territory reduced to rubble, according to the source figures.

Yet those gains have come at a steep strategic and reputational price. Israel has become increasingly isolated from allies who once offered it unquestioning diplomatic cover, and its standing has deteriorated sharply in global public opinion — including within the United States. Prospects for further normalisation deals between Israel and Arab states appear slim in the near term, as popular anger over the war in Gaza makes such agreements politically toxic for regional governments.

Rather than retreating within its borders, Israel has continued to strike targets across the region, including a 2025 attack on Doha, Qatar, that breached what had previously been understood as a red line. Analysts quoted in the piece argue that many governments now regard Israel as the primary source of instability in the Middle East rather than its security anchor, a striking reversal of the narrative that underpinned years of Western diplomacy.

HA Hellyer of the Royal United Services Institute said the United States had staked its entire Middle East strategy before October 7 on normalising Israel's position through the Abraham Accords, the landmark deals that brought several Arab states, including the United Arab Emirates, into open relations with Israel. "Israel's response to the October 7 attack ended that," Hellyer argued, contending that the war dismantled the diplomatic architecture Washington had spent years constructing.

Instead of the stable, Israel-centred order American planners had envisioned, the United States found itself drawn into a direct war with Iran earlier this year. As the conflict unfolded, Tehran struck American allies across the Gulf, exposing the limits of what Washington could actually guarantee. The result, Hellyer said, is a widespread loss of faith in the US as a sufficient security guarantor on its own.

That erosion of trust has practical consequences. States that once relied almost entirely on American protection are now exploring relationships with other external powers while, in some cases, deepening their existing ties with Washington. A key example cited is the Mecca security pact signed in August by Saudi Arabia, Turkiye and Pakistan, which commits the three countries to treat an attack on one as an attack on all — a collective defence arrangement conceived partly to hedge against American unreliability.

The shifting landscape has also widened the room for other outside actors to exert influence. Sanam Vakil, who directs the Middle East and North Africa Programme at Chatham House, described the region as having always been multi-aligned, but said that trait has intensified sharply. Turkiye has expanded its leverage through events in Syria, while China has inserted itself into negotiations over ending the war with Iran, motivated partly by fears for its own energy supplies.

Vakil offered a striking inversion of the region's traditional roles: since October 7, she said, Israel has emerged as the revisionist power challenging the existing order, while Iran increasingly resembles a status quo power focused on recovering lost ground rather than pushing for further change. Tehran's priorities now centre on restoring what it has ceded over three years rather than extending its reach.

She cautioned, however, against overreading Israel's dominance. While Israel may be the region's preponderant military force, Vakil noted that true power is usually measured by a state's ability to project stability — something she argued Israel has neither shown itself willing nor able to do. Military supremacy, in other words, does not automatically translate into political control.

The war has also opened an economic front that reaches well beyond the battlefield. Contrary to hopes in Washington and Jerusalem that strikes in February would quickly bring down Iran's government, the campaign instead created a new theatre of confrontation. Tehran now wields leverage over Israel, the US and their partners through the Strait of Hormuz, which carries roughly a fifth of the world's oil and gas, and through Bab al-Mandeb, where Houthi threats to shipping persist.

The economic fallout has been unevenly distributed. Western economies, analysts note, have been cushioned by alternative energy sources and reserves, while countries more dependent on Gulf exports face sharper pain from elevated oil and diesel prices. With G7 nations agreeing to release emergency stocks in early October, the struggle over energy security has become a central feature of the region's transformed landscape — one more sign that three years after October 7, the map of the Middle East has been fundamentally redrawn.