Houthi supporters carry weapons as they gather in solidarity with the movement as fighting intensifies across several fronts, in Sanaa, Yemen, Oct. 7, 2026. Photo: REUTERS/Mohammed al-Mahdi

On Oct. 23, Director of National Intelligence Jay Clayton sent an unclassified warning to Secretary of State Marco Rubio that Iran had substantially increased efforts to target American personnel.

The memorandum, which copied CIA Director John Ratcliffe, stated that lethal Iranian plots against US citizens had reached “advanced stages” in the Middle East and beyond. While the warning did not identify specific targets or methods, or announce that an attack was imminent, Washington acted swiftly. The State Department reduced staffing at missions in Jordan, Lebanon, Qatar, and the United Arab Emirates, while ordering nonessential personnel and family members out of Saudi Arabia. The warning arrives even as Washington and its European partners continue to treat nuclear diplomacy as separable from the security threat.

That strategic contradiction was underscored on Oct. 24. Speaking on Iranian state television, President Masoud Pezeshkian blamed Washington for derailing negotiations over a proposed interim agreement, calling the Americans “cowards” while still urging another attempt at a deal. That proposed arrangement involves the Strait of Hormuz and the US naval blockade, with broader nuclear talks envisioned afterward, and remains distinct from the E3’s separate nuclear diplomacy.

The public outreach and the covert plotting may not be coordinated, or they may be complementary. Either interpretation leaves the same policy problem: Negotiations that buy time for operational preparation are not diplomacy; they are cover. That risk is acute as Washington prepares options for potential renewed military action, nearly eight months after US and Israeli strikes against Iran began on Feb. 28, 2026.

Tehran’s reliance on covert plotting and distant proxies comes as its primary partner in Lebanon faces severe military constraints. Israeli Defense Minister Israel Katz has said Israeli forces established a 700-square-kilometer security zone in southern Lebanon and claimed that more than 60 villages comprising approximately 23,000 homes, had been razed.

The same report noted that Iranian Deputy Foreign Minister Saeed Khatibzadeh told Hezbollah-aligned lawmakers that Tehran would not ask the group to intervene, arguing that its participation would not alter the military balance. Yet these reported private assurances are not a public Hezbollah commitment. In March, Hezbollah fired rockets at Israel following the killing of Iran’s then-supreme leader, Ali Khamenei, despite an earlier assurance to Nabih Berri, speaker of the Lebanese parliament, that it would stay out.

Private assurances that evaporated once before cannot be treated as a reliable constraint on Iranian decision-making. They are, at best, temporary tactical preferences under pressure.

The security warning extends beyond the immediate diplomatic crisis. On Oct. 23, the State Department updated its Level 4 travel advisory for Iraq to reflect both the potential for Houthi attacks and Iranian efforts to target US government officials. The advisory underscores the overlapping threats facing American personnel, including terrorism, kidnapping, armed conflict, and limited US emergency services.

Meanwhile, Houthi forces intensified their campaign against Saudi Arabia over48 hours. After intercepting ballistic missiles aimed at Riyadh and Khamis Mushait on Oct. 23, Saudi defenses stopped additional missiles headed toward Taif and Yanbu the next day, along with drones over the Eastern Province. The attacks triggered civil-defense alerts across Mecca, Jeddah, Taif, and Yanbu and drew condemnation from Saudi Arabia, Turkey, Egypt, and Pakistan at their Istanbul meeting.

That Oct. 23 ministerial meeting in Istanbul exposed the central flaw in current Western diplomacy. While ministers addressed the Iran war, Houthi attacks on Saudi Arabia, and maritime security, Turkish and French officials cautioned against renewed military escalation. Following those talks, German Foreign Minister Johann Wadephul stated that France, Britain, and Germany remained ready to negotiate with Iran to rule out its acquisition of nuclear weapons. Yet the E3’s stated nuclear objective does not demonstrate how negotiations would address assassination plots against Americans or attacks by Iran-aligned armed groups.

European governments will insist that nuclear talks and counterterrorism occupy separate tracks. That is a procedural distinction, not a strategic one. A negotiation that proceeds while Iranian plots against Americans remain in advanced stages is not parallel diplomacy; it is sequential indulgence. Treating the two tracks as unrelated risks turning nuclear diplomacy into a shield for continued operational activity.

Washington and the E3 should therefore make three things explicit before any renewed nuclear track advances. First, intelligence cooperation and protective measures for American personnel will continue without interruption. Second, credible Iranian plots against US citizens will trigger coordinated consequences independent of the status of nuclear talks. Third, any interim arrangement must include clear, verifiable commitments against targeting Americans — not as a side letter, but as a core condition.

An agreement that addresses enrichment while leaving assassination plots in advanced stages is not a diplomatic achievement. It is a sequential failure. The test of engagement is not whether Tehran returns to the table. It is whether the process produces actual safeguards against the threats already documented against American lives.

Amine Ayoub, a fellow at the Middle East Forum, is a policy analyst and writer based in Morocco. Follow him on X: @amineayoubx.