This Week in Defense: Strait of Hormuz Escalation, Drone Wars, and OPSEC Failures

The past week brought significant developments across the defense landscape — from a notable naval escalation in the Strait of Hormuz to questions about how U.S. forces protect operational security in an era of commercial surveillance. Here's what mattered this week.

U.S. Forces Strike Three Iranian Tankers After Carrier Attacked

American forces struck three Iranian oil tankers around the Strait of Hormuz on Saturday, September 5, after Iran's Islamic Revolutionary Guard Corps launched ballistic missiles at two U.S. warships operating in the region. Both vessels — identified as an aircraft carrier and a destroyer — successfully evaded the incoming munitions, according to U.S. Central Command.

The U.S. response was swift and decisive. Forces permanently disabled the M/T Downy, sailing near Kharg Island, and the M/T Stark 1 operating near Jask. The M/T Kylo was destroyed in the Gulf of Oman after its crew was ordered to abandon ship. The three vessels were described by CENTCOM as part of a "shadow network" funding IRGC operations and its regional partners.

"If you shoot at two of our ships, we will impose an even higher economic cost — taking out three of yours," said CENTCOM commander Adm. Brad Cooper in a statement on X. The Strait of Hormuz remains one of the world's most critical chokepoints, carrying roughly a fifth of global crude oil production.

The strikes mark a shift in rules of engagement. After fighting resumed in the Iran conflict in late July, the U.S. had focused on stopping ships from transiting the strait without directly targeting Iranian vessels — a policy that changed this week.

Military Disables Ad Trackers as Iran Exploits Commercial Surveillance

In a disclosure that underscores the modern OPSEC challenge, all U.S. military branches confirmed they have disabled mobile advertising IDs — known as MAIDs — on government-issued devices. The Army, Navy, Air Force, Marine Corps, and Special Operations Command all confirmed the action following a letter from Sen. Ron Wyden (D-Ore.) and Rep. Pat Harrigan (R-NC) to the Department of Defense Inspector General.

The letter came after reporting that commercially available location data — collected via mobile apps and sold freely by data brokers — was being used by Iran and other adversaries to track and, in some cases, target American bases and personnel in the Middle East. The Air Force only directed the disabling of ad trackers in July, while other branches acted more recently.

Mobile advertising IDs are unique identifying numbers tied to specific devices, enabling apps to track location, common routes, and behavioral habits. "The sale of location data, particularly that of U.S. government personnel, poses a serious threat to national security," Wyden wrote. The bigger concern flagged by officials: personnel continue using personal devices inside military installations, exposing locations despite existing restrictions.

Air Force Pushes for $10M Reaper Replacement After Significant Drone Losses

The U.S. Air Force is moving to accelerate acquisition of a successor to the MQ-9A Reaper — a drone that has suffered major losses in recent operations against Iran. The new aircraft, called the Massed Modular Aircraft (MMA), is being targeted at an approximately $10 million unit price, exclusive of sensors and mission systems. The fully loaded cost of a current Reaper is estimated between $30 million and $50 million depending on configuration.

Air Force Lt. Gen. Christopher Niemi, the service's Chief Modernization Officer, acknowledged the program faces tradeoffs to hit the cost target. "If you don't like losing an MQ-9A that cost on the order of $50 million, with the sensors, you're probably not going to like losing an MQ-9B at a higher price point," he said at a Pentagon roundtable. The Air Force has rejected the newer MQ-9B as a near-term solution, citing production timelines and higher per-unit costs.

Required performance parameters for the MMA include a speed of at least 200 knots, 2,800 pounds of payload capacity, a combat radius of at least 2,300 nautical miles, and the ability to self-deploy 8,000 nautical miles one-way. The aircraft must operate from runways no longer than 6,000 feet and use open-architecture mission systems for rapid capability upgrades.

U.S. Casualty Count Rises to 794 Wounded in Iran Conflict

The Pentagon updated its public casualty tally on Friday, September 4, reporting that 794 service members have been wounded in action since the Iran conflict began on February 28. The majority of wounded are soldiers in the Army, though the exact breakdown by service branch was not disclosed. The update follows a resumption of fighting over the preceding week that saw renewed strikes on both sides.

The toll has climbed steadily since fighting resumed. The conflict, which began with Iran's blockade attempt on the Strait of Hormuz in late February, has expanded to include strikes on infrastructure, naval engagements in the Persian Gulf, and sustained ground operations involving U.S. personnel deployed to the region.

Sources: Task & Purpose, The War Zone