Ministry of Defense reveals four stages of modernization of Kh-101 missiles to bypass russian air defense

The Ukrainian Ministry of Defense has released the results of a comprehensive study of russia’s Kh-101 strategic cruise missiles. According to military engineers, since 2022, the enemy has carried out at least four major upgrades in an attempt to counter the high effectiveness of Ukraine’s air defense, which, as of May 2026, has shot down approximately 88% of such targets. It was reported by the ministry’s press service.

Four stages of “improvement”

Tandem warhead: The russians abandoned excessive range (2,500 km) in favor of power. Part of the fuel tank was replaced with a second warhead. Now the total weight of explosives reaches 800 kg instead of the initial 480 kg.
Cluster submunitions and zirconium: Cluster blocks were added to the missiles for attacks on civilian infrastructure and oil depots. They contain zirconium elements that self-ignite upon contact with air, causing sustained fires that are difficult to extinguish.
Improved passive navigation: The optoelectronic system (OES) now uses updated algorithms for terrain identification based on satellite imagery. The system is passive, so it cannot be jammed by conventional electronic warfare (EW) systems.
SP-504 Protection System: The latest versions of the missiles are equipped with a station that launches thermal and dipole decoys, as well as generates simulation jamming for Ukrainian radars.

Analysis of markings on downed missiles shows that russia no longer has a strategic stockpile of Kh-101s. Final assembly of the missiles takes place 1–2 weeks before launch.

In addition to the shortage of missiles themselves, the enemy has faced the depletion of its Tu-95MS and Tu-160 aircraft. Due to critical engine wear, the bombers are now forced to carry only two missiles instead of the standard six to eight.

This directly reduces the overall potential of russia’s nuclear triad, as these same aircraft serve as carriers of strategic nuclear weapons.

“Ukraine’s goal is to identify 100% of threats and intercept at least 95% of missiles and drones,” emphasized Defense Minister Mykhailo Fedorov. Studying the remains of enemy weaponry allows Ukrainian specialists to quickly update air defense algorithms and find countermeasures for every new “trick” of the occupiers.

As the Ukrainian News agency earlier reported, the warhead of a russian Kh-101 missile was found in Kyiv.