An infantry fighting vehicle does two things that no other military vehicle combines: it carries infantry to the fight, and it fights alongside them when they get there. Unlike an armored personnel carrier — which is designed to deliver troops and withdraw — an IFV stays in the battle, engaging enemy armor, fortifications, and infantry with an autocannon, anti-tank missiles, and increasingly lethal secondary weapons. The best modern IFVs weigh as much as a World War II medium tank, carry armor that can defeat large-caliber autocannon rounds, and mount weapons systems that can kill main battle tanks. These are the 10 most capable infantry fighting vehicles in the world, ranked by combat effectiveness, protection, and the ability to keep both the crew and the infantry in the back alive.
10. Kurganets-25 (Russia)
Russia's next-generation IFV exists primarily on parade grounds and in manufacturer's brochures. The Kurganets-25 features a remote Bumerang-BM turret with a 30mm 2A42 autocannon and Kornet-EM anti-tank missiles, a front-mounted engine for improved crew protection, and modular armor. At 25 tonnes, it is designed to be amphibious and air-transportable. The problem: after more than 15 years of development, serial production has not materialized, and the Kurganets-25 has not been deployed to Ukraine — where it would have been immediately useful. It ranks last because it exists primarily as a promise rather than a proven weapon.
9. Ajax (United Kingdom)
The Ajax uses the 40mm CTA International cannon — a telescoped ammunition weapon that fires compact, high-velocity rounds with excellent range and penetration. At 38 tonnes, it is heavily protected, and the 589-vehicle order for the British Army would provide a significant armored reconnaissance and strike capability. But the Ajax program has been plagued by vibration and noise problems that have delayed full operational capability for years. The 40mm CTA cannon is genuinely excellent technology — but a vehicle that shakes its crew at operational speeds is not yet a vehicle that can fight. When the problems are fixed, the Ajax will be a formidable machine. Until then, it sits at ninth.


