Saturday marks the first anniversary of the 13 June 2025 assault that tore apart the long-running shadow war between Iran and Israel. What Tehran calls the “12-Day War” began before dawn with Israel’s Operation Rising Lion — an unprecedented wave of strikes on Iran’s nuclear infrastructure, missile bases and senior personnel. Within the first week, Israel had assassinated a cluster of military commanders and atomic scientists; by the second, American B-2 bombers, acting on President Donald Trump’s orders, hit the underground enrichment halls at Fordo, Natanz and Isfahan. It was the largest direct military confrontation between Iran and the combined forces of the United States and Israel, and it ended only after Qatari diplomacy secured a ceasefire on 3 Tir — that is, 24 June — leaving both sides bloodied and the region profoundly unsettled.

Viewed from Jerusalem, the operation aimed to halt what Israeli intelligence described as Tehran’s sprint towards nuclear weapons capability. The target list, diplomats recall, went well beyond centrifuges: the Evin prison complex, government buildings and missile depots were also hit. Iran did not absorb the blows passively. From Tehran’s perspective, documented in defiant public statements by parliamentary speaker Mohammad-Baqer Qalibaf on the anniversary, the “criminal attacks” murdered innocent children even as Iran’s retaliatory missile barrages against major Israeli cities forced the adversary to request a truce. Qalibaf’s vow to stand “to the last breath for the final victory of dear Iran” reflects a narrative of heroic resistance that still dominates official discourse, where the war is framed as a military success that exposed enemy vulnerability.

Yet the 12-day conflagration proved to be a mere prelude. Eight months later, a second, far longer conflict erupted — the 40-day war, sometimes called the Ramadan War — confirming that the underlying disputes had not been settled. From Washington, the episode now looks like a case study in the limits of coercive diplomacy. The Trump administration coupled its military intervention with an urgent, discreet search for an exit, using Qatar as a channel to hammer out a ceasefire. Direct and indirect American-Iranian talks continued both before and after the two wars, yet they remain deeply contentious inside Iran, where influential factions oppose any negotiation with the United States. On the anniversary, one domestic news outlet pointedly asked readers to weigh the concerns of those opponents “in light of the experience of two recent wars” — a sign that the internal debate is unresolved.

Regional analysts in London and Gulf capitals note that the ceasefire architecture now looks fragile. The 12-day war decapitated parts of Iran’s nuclear and military leadership but did not dismantle the programme; the subsequent 40-day war demonstrated that the appetite for military solutions has not been exhausted. Opposition to engagement with Washington feeds a political dynamic that could block the very negotiations needed to prevent a third round. Qatar’s role, while vital, cannot substitute for a genuine political track. One year on, the ashes of Operation Rising Lion hold a warning: a short, sharp war can reshape the strategic landscape overnight, but without a sustainable agreement, it merely resets the clock on the next confrontation.