A US Air Force aerial refuelling aircraft that had departed Tel Aviv transited airspace over the United Arab Emirates on June 26, hours after Iran’s top operational military command warned of Israeli military flights through neighbouring countries. The aircraft, a Boeing KC-135R Stratotanker registered 57-1512, was tracked over the UAE near Ras Al-Khaimah at 27,000 ft on a heading of 110° and a ground speed of 416 knots. The flight came with the April 8 ceasefire holding but straining, and with Iran signalling it will treat military air activity near its borders as a threat while the United States and Iran pursue a 60-day process to implement the memorandum of understanding that ended the fighting.
What Flightradar24 Tracked Over the UAE
The Boeing KC-135R Stratotanker with registration 57-1512 was tracked over the UAE near Ras Al-Khaimah at an altitude of 27,000 ft, on a heading of 110° and a ground speed of 416 knots, having departed Tel Aviv. The airframe was listed as military or government, US-registered rather than Israeli, and it was one of two US tanker movements recorded that day. A second US tanker was recorded as heading towards the Iranian island of Kish at 09:26 BST. The flight-tracking data does not establish a link between the US tanker and the Israeli movements the Iranian command referred to.
- Registration: 57-1512
- Altitude: 27,000 ft
- Heading: 110°
- Ground speed: 416 knots
- Second US tanker: 09:26 BST, heading toward Kish
What Iran’s Military Command Said
Iran’s IRGC Khatam al-Anbia Central Headquarters, the country’s top operational military command, issued a statement on June 26 warning over what it described as the movement of Israeli military aircraft towards Iran. The command framed the warning in terms of US responsibility for Israeli action in regional airspace.
We consider the movements and presence of military aircraft of the terrorist Zionist regime in the skies of some neighbouring countries towards Iran to be a dangerous act and a threat against the Islamic Republic of Iran. We declare that if America is unable to contain and control the Zionist regime, the Islamic Republic of Iran will not tolerate any threat against it and considers it its right to respond to these dangerous actions,
That statement was carried by the Islamic Republic of Iran Broadcasting and reproduced in identical English by Iran’s IRGC command statement on Israeli flights. The command did not name any specific aircraft, type or registration, and the open-source flight-tracking data on the US-registered KC-135R does not tie the tracked flight to the movements the Iranian warning referred to. The framing places the burden on Washington to contain Israeli action, and it came days after Prime Minister Benjamin Netanyahu publicly called for Israel to develop an independent weapons-manufacturing capability at a meeting with reserve combat officers in Gush Etzion in the West Bank.
The Islamabad Memorandum Behind the Warning
Iran and the US reached a ceasefire on April 8 brokered by Pakistan, a deal that came under repeated strain and was followed by weeks of mediation before a more formal framework was reached. The Islamabad Memorandum of Understanding was signed remotely on June 17 by Donald Trump and Iranian president Masoud Pezeshkian, with Trump signing at the Palace of Versailles during dinner with French president Emmanuel Macron following the G7 summit and Pezeshkian signing in Tehran. The deal left Israel formally outside the agreement, a tension that how Trump’s deal signed Israel out of the Lebanon war captures from the Israeli side.
The memorandum is a 14-point framework agreement that ended military operations on all fronts including Lebanon, reopened the Strait of Hormuz to commercial shipping toll-free for 60 days, ended the US naval blockade of Iranian ports, and gave Iran a 60-day sanctions waiver that the United States implemented on June 21.
| Term | Detail |
|---|---|
| Ceasefire extension | 60 days |
| Strait of Hormuz | Reopened to commercial shipping, toll-free for 60 days |
| US naval blockade | Ended |
| Sanctions waiver | 60 days, implemented 21 June |
| Private investment fund | At least $300 billion |
| Deferred to follow-on talks | Nuclear program, uranium stockpiles, ballistic missile program |
Major issues including Iran’s nuclear program, uranium stockpiles and ballistic missile program were deferred to follow-on talks inside the 60-day window. The framework contained no accord on the nuclear program or uranium stockpiles, although it called for downgrading Iranian uranium from weapons-grade to reactor-grade following a final agreement. Iran has also said it intends to charge “fees” rather than tolls for ships transiting the Strait, a position that runs alongside the US position that the strait would be “permanently toll-free.”
Mediation was led by Pakistan with Qatar, Saudi Arabia, Turkey and Egypt also facilitating, and the framework’s text was finalised in talks that ran through several near-collapse moments. Israeli defense minister Israel Katz said the IDF would not withdraw from its southern Lebanon security zone even if Trump asked for it, and Israel publicly reserved the right to strike Hezbollah in retaliation for cross-border attacks. A $300 billion private investment fund designed to trigger investment in Iran sits alongside the release of frozen Iranian assets as the financial backbone of the strategic arithmetic of the deal, and the pact does not mention Iran’s network of non-state allies in the Middle East by name, leaving what counts as an Israeli “violation” of the Lebanon ceasefire largely undefined.
Lebanon Strikes and the Strait of Hormuz
Israel and Hezbollah have continued to exchange strikes despite a separate ceasefire on the Lebanon front. Iran has cited what it calls Israeli violations in Lebanon as grounds for keeping the Strait of Hormuz effectively closed, and announced the closure of the Strait again on June 20 in response to Israeli strikes in Lebanon, with Iran’s central military command citing a US “breach of contract” and “the Zionist regime’s continuous and relentless violation of the ceasefire in southern Lebanon.”
I greatly appreciate the support we have received – and that I have secured over the years — from our American friends. But today I say, we need our own independent weapons-production system. We must manufacture our own armaments.
That was Israeli Prime Minister Benjamin Netanyahu speaking to reserve combat officers in Gush Etzion in the West Bank, and it captured the framing Iranian state media used to justify the June 26 warning. An analysis of Iran’s June 7 missile retaliation against Israel traces an earlier escalation in which a Hezbollah rocket attack on northern Israel threatened to collapse the Middle East ceasefire, and Iran responded by firing at least ten missiles at Ramat David Airbase on the IRGC’s stated ground that Israeli aircraft flying the Beirut strike had operated from there. The IDF intercepted all the missiles.
The commander of the Khatam al-Anbia Headquarters at the time warned that if Israel expanded attacks regionally, Israel “will face more crushing and regrettable blows.” CENTCOM said on June 6 that US forces shot down two Iranian attack drones threatening maritime traffic in the strait. An Iranian parliamentarian told IRGC-affiliated media on June 7 that Iran had collected an average of one and a half to two million dollars per ship through its unrecognised traffic separation scheme, with payment reportedly made in bartered goods and cryptocurrency. Iran’s Environment Department said the Foreign Affairs Ministry was reviewing plans to charge ships transiting the strait for “maritime and environmental service fees,” and the Strait of Hormuz handles a significant share of global oil shipments. Iran had blockaded it for much of the war before the preliminary agreement began to reopen transit in mid-June, and Iran’s seat on the Lebanon ceasefire task force is now where Tehran is pressing the case that the Strait should stay restricted.
The US Military’s Routine Footprint in the Gulf
The United States maintains a significant military presence across the Gulf, including the Fifth Fleet in Bahrain, and US tanker, surveillance and transport aircraft operate routinely across regional airspace. The Flightradar24 data on the 57-1512 KC-135R fits that pattern, since US Air Force tankers transit the UAE and the Gulf on a near-daily basis for refuelling, logistics and operational support.
CENTCOM has continued to operate in and around the Strait of Hormuz throughout the ceasefire, including the June 6 shoot-down of two Iranian drones and the announcement on June 18 that CENTCOM had removed the naval blockade of Iranian ports in line with the memorandum. The routine nature of US tanker flights is part of why the Iranian command’s warning did not name a specific aircraft, type or registration. The Fifth Fleet’s area of responsibility encompasses roughly 2.5 million square miles and serves as the US Navy’s primary regional command. Iran’s warning treats that routine activity as ambiguous on purpose, since naming a US aircraft would have implied Iran had decided the flight was an Israeli operation in disguise, and the choice to keep the reference generic keeps the diplomatic space open while still putting Washington on notice.
The Talks Ahead and the Mediation Path
The US-Iran process, mediated by Pakistan and Qatar, is due to resume at expert level next week, with the two sides working to implement the memorandum and establish a direct communication line between Tehran and Washington to prevent incidents. The first round of US-Iran talks concluded in Switzerland with mediators Pakistan and Qatar announcing “encouraging progress” toward a lasting peace deal, and Vice President JD Vance had been expected to lead the American side before his trip was postponed.
The mediation path that kept the US-Iran talks alive ran through several near-collapse moments, including a June 11 sequence of escalating strikes that left a plane carrying Qatari mediators stranded on the tarmac in Tehran as diplomats tried to halt what appeared to be a spiral back into all-out war. US envoy Steve Witkoff travelled to Switzerland to get the talks back on track, and Pakistan’s interior minister Mohsin Naqvi arrived in Iran in parallel for meetings with officials. The expert-level talks next week are aimed at implementing the memorandum’s 60-day framework and at the direct communication line between Tehran and Washington that has been one of the more durable demands from both sides, and that line would give each side a route to flag a flight, a convoy or a strike in time to avoid the kind of misinterpretation the June 26 statement reflects.
The 60-day implementation window will determine whether Iran’s nuclear program, uranium stockpiles and ballistic missile program can be resolved into a final deal, or whether the MOU’s framework gives way under the weight of the Lebanon violations both sides are using to define the other’s bad faith. Trump has indicated all current US military assets will remain in place in the Middle East until the agreement is “fully complied with,” a posture that gives Washington leverage to enforce the memorandum but also raises the cost of any new incident. The Khatam al-Anbia warning on June 26 is the kind of message that tests whether the direct communication line the mediators are trying to build can carry the weight of routine tanker flights over the Gulf before they harden into the next escalation.
Frequently Asked Questions
What was the US tanker doing over the Gulf?
A US Air Force Boeing KC-135R Stratotanker registered 57-1512 was tracked by Flightradar24 over the UAE near Ras Al-Khaimah on June 26 at 27,000 ft on a heading of 110° and a ground speed of 416 knots, having departed Tel Aviv. The KC-135R is an aerial refuelling tanker, not a strike aircraft, and the airframe was US-registered rather than Israeli.
What did Iran’s military command say?
The IRGC Khatam al-Anbia Central Headquarters said on June 26 that the movements and presence of military aircraft of the Israeli army in the skies of some neighbouring countries heading towards Iran were a dangerous act and a threat against the Islamic Republic, and that if the United States was unable to rein in and control Israel, Iran would not tolerate any threat and considered responding its right.
What is the Islamabad Memorandum?
The Islamabad Memorandum of Understanding is a 14-point framework agreement between the United States and Iran signed remotely on June 17 by Donald Trump and Iranian president Masoud Pezeshkian. It ended military operations on all fronts including Lebanon, reopened the Strait of Hormuz to commercial shipping toll-free for 60 days, ended the US naval blockade of Iranian ports, and gave Iran a 60-day sanctions waiver that the US implemented on June 21.
Why is the Strait of Hormuz still tense?
Iran has cited Israeli violations in Lebanon as grounds for keeping the Strait of Hormuz effectively closed, and announced the closure again on June 20 after Israeli strikes in Lebanon. Iran says it intends to charge “fees” rather than tolls for transit, an Iranian parliamentarian said Iran collected an average of one and a half to two million dollars per ship through its unrecognised traffic separation scheme, and the US shot down two Iranian drones threatening maritime traffic in the strait on June 6.
What comes next in the US-Iran process?
The US-Iran process, mediated by Pakistan and Qatar, is due to resume at expert level next week, working to implement the memorandum and establish a direct communication line between Tehran and Washington to prevent incidents. The 60-day implementation window will determine whether Iran’s nuclear program, uranium stockpiles and ballistic missile program can be resolved into a final deal.
