Key Points and Summary – The UK’s Challenger 3 program represents a significant and relatively cost-effective modernization of its armored forces, but the plan to field only 148 of these tanks by 2030 raises serious concerns about force size.
-While the Challenger 3 will be a formidable platform, featuring a new NATO-standard 120mm smoothbore gun and advanced modular armor, experts argue the small number is insufficient for a credible armored division in a large-scale conflict.
-Despite the UK’s commitment to increased defense spending, the British Army remains “hollowed out,” and 148 tanks are simply not enough to provide a meaningful deterrent or sustained combat capability against a peer adversary.
The Message Is Clear: The UK Needs More Challenger 3 Tanks
The British military’s Challenger 3 main battle tank represents a significant modernization for the British Army, featuring upgrades that include a new turret, a 120mm smoothbore gun, and enhanced protection.
The UK plans to have the Challenger 3 to full operational capability by 2030 at a per-unit cost of roughly $7.9 million.
However, the planned 148 tanks are not sufficient. This number is too low, potentially impacting the UK’s ability to deploy an entire armored division or sustain operations in a large-scale conflict.
The British Army Is Woefully Short of Tanks
The British Army invented the tank, and today, its only Armored Division has just a skeleton force of operational tanks. How did this happen? The British Army is so hollowed out that many in NATO now doubt that they could effectively join in if the alliance ever goes to war with Russia.
It has been widely reported that Britain currently has only 20 to 25 operational Challenger 2 tanks, and its self-propelled artillery, the AS90 howitzers, have been given to Ukraine.
Prime Minister Keir Starmer recently stated that Britain could participate in a Ukraine peacekeeping mission, which has been dismissed as unrealistic.
Are the Upgrades Ultimately Cheaper?
The total cost of the Challenger 3 program is estimated at approximately $1.17 billion. This figure includes research and development, testing, infrastructure improvements, and physical upgrades of the 148 tanks.
On a per-unit basis, this translates to roughly $7.9 million per tank when compared to the cost of new main battle tanks, such as the Leopard 2A7+ at approximately $11 million or the US M1A2 SEPv3 Abrams at around $12 million, the Challenger 3 promises to offer high-end capability at a relatively moderate cost.
Modernization Upgrades
The Challenger 3 upgrades address the obsolescence of the Challenger 2, bringing the British Army’s armored capabilities up to par with those of its peer competitors.
The 120mm smoothbore gun ensures compatibility with NATO-standard ammunition, thereby improving logistics and interoperability. The tank replaces the Challenger 2’s 120mm rifled gun with the 120mm L55A1 smoothbore gun, the same used in the German Leopard 2A7.
This change brings the UK into line with NATO standards, allowing for the shared use of ammunition and logistics with allied forces. The new gun is paired with advanced kinetic energy rounds developed in collaboration with Rheinmetall, enhancing the tank’s lethality against modern armored threats.
The Challenger 3 features a new modular armor system. This includes external armor known as “EPSOM” and internal armor referred to as “Farnham,” both designed to provide superior protection against threats, including kinetic energy penetrators and improvised explosive devices.
The tank will be equipped with an active protection system (APS), although specifics remain classified. This system would allow the tank to detect and intercept incoming projectiles.
With a new transmission and suspension, the Challenger 3 will provide troops with increased mobility and a smoother ride, thereby enhancing its tactical capabilities.
The UK Aims To Shorten Delivery Time For Challenger 3s
The UK Ministry of Defence is taking steps to accelerate the delivery of Challenger 3 main battle tanks.
Maria Eagle MP (Minister of Parliament) was recently asked about what is being done to speed up deliveries of the Challenger 3 tank.
“We are engaged with the supply chain and additional resources have been directed towards ensuring the materials required for Challenger 3 main battle tanks are available to meet the delivery timescales,” she said.
Currently, four prototype tanks have been built and are undergoing testing. Four more are in production. Initial operational capability (IOC) is anticipated in 2027, with full operational capability (FOC) expected by 2030.
The Challenger 3 is a technologically advanced tank that will significantly improve the British Army’s armored capabilities. However, an Armored Division should number between 170 and 300 tanks and between 110 and 220 artillery pieces. It is a nightmare for British commanders trying to plan operations.
The Challenger 3 will be the best tank to ever serve in the British Army. But it is more of a stop-gap than a true game-changer. Again, the force has been hollowed out, and there aren’t easy answers.
The UK, along with the rest of NATO, except for Spain, has agreed to increase its defense spending to up to 5 percent of its GDP. That will help, but in the short term, the UK must rebuild its armor force to the best of its ability.
About the Author:
Steve Balestrieri is a National Security Columnist. He served as a US Army Special Forces NCO and Warrant Officer. In addition to writing on defense, he covers the NFL for PatsFans.com and is a member of the Pro Football Writers of America (PFWA). His work was regularly featured in many military publications.
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