warfare

EC-130H Compass Call Electronic Warfare Plane Joins Growing U.S. Force In Caribbean

One of the U.S. Air Force’s last remaining EC-130H Compass Call electronic warfare planes is now in Puerto Rico, video emerging on social media shows. The arrival marks the latest in an increasing buildup of military assets in the region to pressure Venezuelan dictator Nicolas Maduro and for what seems increasingly likely to be a contingency for a sustained kinetic operation over Venezuela.

You can catch up with our latest coverage on Operation Southern Spear in the Caribbean here.

The Compass Call landed 10 p.m. on Saturday at the Luis Muñoz Marin International Airport in Puerto Rico, the videographer, an aircraft spotter who uses the Instagram handle Pinchito.Avgeek, told us. Other aircraft spotters told The War Zone that this is the first confirmed Compass Call to be seen in Puerto Rico as of late. The airport is also home to the Puerto Rico Air National Guard’s 156th Wing and has seen C-17 Globemaster III and other military aircraft operating there for Southern Spear.

A video posted to social media yesterday (20 Dec) shows the arrival of a USAF EC-130H at Luis Muñoz Marin International Airport (SJU/TJSJ) in Puerto Rico.

There are only a few EC-130Hs left in USAF inventory.

Credit/permission: pinchito.avgeek (IG). pic.twitter.com/IxqBaKSBtE

— LatAmMilMovements (@LatAmMilMVMTs) December 22, 2025

While there are a number of C-130 Hercules variants in Puerto Rico, a screencap of that video shows that antennas under the tail and on top of the aircraft behind the cockpit conclusively show this is an EC-130H Compass Call.

EC-130H. (Screencap via Pinchito.Avgee Instagram account.)

Though the Air Force is phasing these aircraft out in favor of EA-37B Compass Call jets, the EC-130H brings capabilities that would be called upon for an attack on Venezuela should one be ordered. The heavily modified C-130 Hercules cargo planes carry a suite of electronic attack gear that can find and track “emitters” like radios and radars and then scramble their signals. This equipment can also jam cell phones.

A U.S. Air Force EC-130H Compass Call aircraft taxis on the flightline at Davis-Monthan Air Force Base, Ariz., July 18, 2024. The EC-130H allowed the Air Force to jam communications, navigation systems, early warning and acquisition radars during tactical air, ground and maritime operations. (U.S. Air Force photo by Airman 1st Class Jasmyne Bridgers-Matos)
A U.S. Air Force EC-130H Compass Call aircraft taxis on the flightline at Davis-Monthan Air Force Base, Ariz., July 18, 2024. The EC-130H allowed the Air Force to jam communications, navigation systems, early warning and acquisition radars during tactical air, ground and maritime operations. (U.S. Air Force photo by Airman 1st Class Jasmyne Bridgers-Matos) Senior Airman Jasmyne Bridgers-Matos

The equipment aboard the Compass Call would help to blind Venezuelan air defenses, communications and command and control, making it harder to respond to attacks by combat aircraft and cruise missiles. The four-engine aircraft can fly for many hours without refueling and much longer with tanker support, giving U.S. Southern Command a long-loitering airborne EW platform.

As we noted in an earlier story: “Previous iterations of the EC-130H-based Compass Call system have proven their value in combat zones on multiple occasions in the past two decades. A contingent of these aircraft was continuously forward-deployed in the Middle East, from where they also supported operations in Afghanistan, between 2001 and 2021. EC-130Hs supported the raid that led to the death of Al Qaeda founder Osama Bin Laden in Pakistan in 2011 and prevented the detonation of an improvised explosive device that might have killed then-Maj. Gen. James Mattis, who later rose to the rank of General and also served as Secretary of Defense under Trump, in Iraq in 2003, among many other exploits, according to a recent story from Air Force Times.”

Maintenance troops and aircrew members prepare a U.S. Air Force EC-130H aircraft for its final departure from an undisclosed air base on Aug. 29, 2010. (U.S. Air Force photo by Maj. Dale Greer) Maintenance troops and aircrew members prepare a U.S. Air Force EC-130H aircraft for its final departure from an undisclosed air base on Aug. 29, 2010. Credit: U.S. Air Force photo by Maj. Dale Greer

The current status and location of the Compass Call are not publicly known. The videographer told us he only saw it land. A U.S. official we spoke with could not comment on the arrival of the EC-130H but told us that there have been no new military orders for Southern Spear.

The EC-130H joins a squadron of E/A-18G Growler electronic attack jets, deployed on the aircraft carrier USS Gerald R. Ford, as well as another squadron on land, as airborne electronic warfare assets now operating in the Caribbean. While Compass Calls offer some overlapping capabilities and some significantly different ones than the Growlers, the arrival of the EC-130J is another indication that electronic warfare is clearly taking a lopsided focus compared to the size of the rest of the fighting force deployed in the region.

A contingent of six U.S. Navy EA-18G Growler electronic warfare jets, roughly a full squadron, is now forward-deployed at the former Naval Station Roosevelt Roads in Puerto Rico.
A stock picture of a US Navy EA-18G Growler. USAF/Staff Sgt. Gerald Willis

While it is unclear if the Compass Call has performed any of its offensive operations yet, both the U.S. and Venezuela are using defensive jamming to protect assets. This has become an increasing problem for the region as tensions rise.

“At least some of the U.S. warships that have deployed to the Caribbean in recent months have been jamming GPS signals in their vicinity,” The New York Times reported, citing an analysis of data provided by Stanford University and a U.S. official who spoke on the condition of anonymity to discuss operational matters.

In an effort to protect important resources, “the armed forces of President Nicolás Maduro of Venezuela have jammed the GPS signals around the country’s critical infrastructure, including military bases, oil refineries and power plants,” the publication noted, citing an analysis by Spire Global, a satellite data firm.

Combined, the jamming is raising concerns for aviation.

“Whether jamming is due to the U.S. or Venezuelan forces, it really doesn’t matter: You don’t want an aircraft going in there,” Gen. Willie Shelton, the former head of the U.S. Air Force’s Space Command, told The Times.

The US has issued a flight warning for Venezuela, but it has been mostly silent about the impact of its warships’ GPS jammers on tourism-dependent Caribbean islands. “We just lost our GPS,” a Copa pilot reported over Trinidad on Dec. 10. w/ @riley_mellen https://t.co/Sd8KkvgzwH

— Anatoly Kurmanaev (@AKurmanaev) December 22, 2025

As for the EC-130Hs, the aircraft is being retired from the Air Force inventory.

“Currently, the U.S. Air Force is operating and maintaining eight EC-130H aircraft,” Capt. Ridge Miller, a spokesperson for Air Combat Command (ACC) told The War Zone Monday afternoon. “A total of 10 EA-37B aircraft are on track to be delivered while simultaneously retiring the EC-130H fleet in a phased approach. Both platforms currently operate out of the 55th Electronic Combat Group at Davis Monthan AFB in Arizona.”

The EA-37B is based on a heavily modified version of the Gulfstream G550 airframe.

The US Air Force's future EC-37B electronic warfare jets are now EA-37Bs, which is meant to highlight their ability to not only find and attack various types of targets, but destroy them.
An EA-37B Compass Call jet. (L3Harris) L3Harris

In addition to the Compass Call, other C-130 variants are operating out of Puerto Rico. One of which is the Marine Corps’ KC-130J Hercules tanker/transport aircraft. The KC-130Js uses the probe-and-drogue method for Navy and Marine Corps aircraft, and is used to refuel fixed-wing fighter aircraft and helicopters.

Plane spotter @LatAmMilMovements told us that at least one of these aircraft, and sometimes two, have had a steady presence ever since Marine F-35B Lightnings arrived in Puerto Rico in September. This matches the imagery and satellite photos we have seen of the installation for months now. AV-8B Harriers, MV-22 Ospreys, and CH-53 Sea Stallions, all from the USS Iwo Jima and its flotilla, are also using the base regularly and they can all refuel from the KC-130J.

Air Force HC-130J Combat King II combat search and rescue (CSAR) planes are also flying out of Puerto Rico. Traditionally, they provide fuel to HH-60W Jolly Green Giant II CSAR helicopters, CV-22 Ospreys, and, to a lesser degree, the 160th Special Operations Aviation Regiment (SOAR) helicopters.

These types are just part of a growing fleet of aerial refuelers in the region. The Air Force has also deployed KC-135 Stratotankers and KC-46 Pegasus tankers to the Dominican Republic and U.S. Virgin Islands.

A U.S. Marine Corps KC-130J aircraft taxis before takeoff past parked U.S. Marine Corps F-35B and U.S. Air Force F-35A fighter jets on the apron at the former Roosevelt Roads naval base in Ceiba, Puerto Rico, December 21, 2025. REUTERS/Ricardo Arduengo pic.twitter.com/MhQqrCrK0j

— Idrees Ali (@idreesali114) December 21, 2025

As more tanker aircraft arrive in Puerto Rico, they are also building up at MacDill Air Force Base in Tampa, Florida. Aerial images show at least 28 KC-135s at the base. The image also shows at least two E-3 Sentry Airborne Warning and Control System (AWACS) aircraft are operating from MacDill, located about 1,400 miles northwest of Venezuela. As we pointed out last week, at least one Sentry was recently tracked on FlightRadar24 flying close to the Venezuelan coast. 

Flying over MacDill this morning, seeing a significantly lot more aircraft than last month:
1 C-32
1 C-17 Globemaster
2 E-3 Sentry’s
8 UHi60 Blackhawk’s
28 KC-135 Stratotanker’s pic.twitter.com/g7zi9AnraA

— Chris (@flyrogo) December 21, 2025

While E-3s may have been present but not trackable over the Caribbean in recent days, this one being trackable was not a mistake. U.S. military aircraft executing easily trackable sorties very near Venezuelan airspace have been a key component of the pressure campaign placed on Maduro. 

In addition to the growing military pressure on the Venezuelan leader, the U.S. is also raising the stakes economically. Since President Donald Trump declared a blockade against sanctioned oil tankers, U.S. authorities have seized two tankers. On Sunday, the Coast Guard was in “active pursuit” of the massive tanker Bella 1 after it refused to submit to U.S. seizure efforts. The status of that effort was unclear as of Monday afternoon. We have reached out to the Coast Guard for more details.

🚨🇺🇸🇻🇪🇮🇷 BREAKING: The oil tanker Bella 1 was not seized by United States forces and has continued its voyage from Iran to Venezuela. The vessel remains en route, signaling a completed avoidance of interdiction during its transit. pic.twitter.com/denLoaDhRR

— Defense Intelligence (@DI313_) December 22, 2025

Though the military and economic pressure are building on Maduro, Trump’s exact intentions remain an open question, although they appear to be becoming clearer by the day. During his announcement of the new Trump class battleships Monday afternoon, the president again said that the U.S. would soon be going after drug cartels on land; however, he explained that would not just be focused on Venezuela.

Contact the author: howard@thewarzone.com

Howard is a Senior Staff Writer for The War Zone, and a former Senior Managing Editor for Military Times. Prior to this, he covered military affairs for the Tampa Bay Times as a Senior Writer. Howard’s work has appeared in various publications including Yahoo News, RealClearDefense, and Air Force Times.




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New chief of Britain’s MI6 warns of threat from Russian hybrid warfare

The use of hybrid warfare tactics was the most dangerous aspect of the threat posed by an “aggressive, expansionist and revisionist” Russia, MI6 chief Blaise Metreweli was set to say Monday in her first speech since taking over at Britain’s spy agency in October. File photo courtesy U.K. Foreign Office/EPA-EFE

Dec. 15 (UPI) — Incoming spy chief Blaise Metreweli will use her first speech as head of MI6, Britain’s foreign intelligence service, to warn of the grave threat from Russia, particularly from its use of hybrid warfare.

The agency’s first woman head was set to warn of what she called “an acute threat posed by an aggressive, expansionist and revisionist Russia” and that its use of cyberattacks and drones meant “the frontline was everywhere.”

Metreweli, who took over from the outgoing “C,” Sir Richard Moore, on Oct. 1, will detail incidents of hacking and flying of drones near vital infrastructure by Russian proxies as examples of its use of hybrid tactics.

Russia has been waging this type of low-grade war on Ukraine‘s Western allies since Russia’s full-scale invasion in 2022, according to analysts, flying drones into NATO airspace neighboring Ukraine, disrupting flights by allegedly flying drones near European airports and cutting undersea cables.

In Britain, this has included recruiting Britons to spy for it, allegedly paying individuals to carry out an arson attack on a factory in London owned by Ukrainians and pointing lasers at RAF jets tracking Russian spy ships.

Speaking at MI6 HQ in central London, Metreweli was expected to vow Britain would not let up its campaign to impede Russian President Vladimir Putin’s aggression against Ukraine, noting recent sanctions imposed on Russian organizations and individuals the government believes were involved in information warfare.

“The export of chaos is a feature not a bug in the Russian approach to international engagement; and we should be ready for this to continue until Putin is forced to change his calculus,” she is expected to say.

As expected, Metreweli, who previously served as MI6’s technology and innovation lead, made famous by the character “Q” in the James Bond movie franchise, will stress the key role technology must play going forward.

She will urge intelligence officers to become technology experts “not just in our labs, but in the field, in our tradecraft.”

“We must be as comfortable with lines of code as we are with human sources, as fluent in Python [the computer progamming language] as we are in multiple languages.”

In September, MI6 launched Silent Courier, a secure messaging platform on the dark web, enabling spies to anonymously upload information useful to British intelligence from anywhere in the world. A YouTube video tutorial accompanied the launch.

Britain was, Foreign Secretary Yvette Cooper said “bolstering their efforts with cutting-edge tech so MI6 can recruit new spies for the United Kingdom — in Russia and around the world.”

The service also carried the following disclaimer from the Foreign Office.

“MI6 advises individuals accessing its portal to use trustworthy VPNs and devices not linked to themselves, to mitigate risks which exist in some countries.

“Do not use a name, phone number or other data linked to your real identity when creating this account,” it added.

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