Direct proof of use
The Kh-55/Kh-555 family is documented in the 2014 Russia-Ukraine War through official and government-attributed strike reporting. A UK Ministry of Defence statement said Russian forces conducted strikes against Ukraine between April 27 and May 2, 2023 using Kh-101 and Kh-555 long-range air-launched cruise missiles.
Ukrinform, citing the Air Force of the Armed Forces of Ukraine, reported that Russia attacked Ukraine on September 21, 2023 with 43 Kh-101/Kh-555/Kh-55 air-launched cruise missiles fired from 10 Tu-95MS strategic bombers west of Engels. Ukraine Crisis Media Center separately reported the same attack and cited General Valerii Zaluzhnyi for the bomber and missile-family identification.
Ukraine's Ministry of Defence reported in May 2026 that Ukrainian air defenses had intercepted about 88 percent of Kh-101, Kh-55, and Kh-555 cruise missiles launched by Russia against Ukraine since the beginning of 2026.
Sources: UK Defence Secretary Statement, Ukrinform September 2023 Missile Attack, UCMC Day 575, Ukraine MOD Kh-101 Modifications
Dated strike evidence
The cited public record places the family in repeated Russian long-range strike packages rather than in isolated single-missile use. The UK statement gives a late-April to early-May 2023 Kh-555 use window and links that salvo to strikes in Ukraine, including an apartment-block hit reported by the UK statement.
On September 21, 2023, Ukrainian Air Force reporting relayed by Ukrinform said 43 Kh-101/Kh-555/Kh-55 missiles were launched from Tu-95MS bombers; 36 were destroyed by Ukrainian air defense units. UCMC's account said the same strike damaged power facilities and power grids in multiple Ukrainian regions and quoted an Air Force spokesperson saying Russia was likely to continue targeting fuel and energy facilities along with military targets.
On January 8, 2024, UCMC reported another combined Russian strike in which Ukrainian defense forces said they shot down 18 of 24 Kh-101/Kh-555/Kh-55 cruise missiles. That account said Russian missiles hit locations in Kharkiv, Dnipropetrovsk, Khmelnytskyi, and Zaporizhzhia regions and targeted critical infrastructure, industry, and military sites.
Sources: UK Defence Secretary Statement, Ukrinform September 2023 Missile Attack, UCMC Day 575, UCMC Day 684
Operational role
In this conflict, the Kh-55/Kh-555 family appears on Russia's side as an air-launched long-range strike weapon carried by strategic bombers. The public strike reports used here identify Tu-95MS bomber launches and group Kh-101, Kh-555, and Kh-55 missiles in mixed salvos, so the evidence supports family-level use and specifically documented Kh-555 use, but it does not always identify the exact variant for each individual missile impact.
CSIS describes the Kh-555 as a conventional variant of the Kh-55 with a high-explosive, penetrating, or submunitions warhead and lists Tu-95MS and Tu-160 bomber variants among the launch aircraft for the family. The Open Source Munitions Portal similarly treats Kh-55, Kh-55SM, Kh-555, and modified or reassembled examples as a series that can be difficult to distinguish in Ukraine-war documentation.
The sources directly support Russian use against Ukraine. They do not support Ukrainian use of the Kh-55/Kh-555 family in this conflict.
Sources: CSIS Kh-55, OSMP Kh-55 Series, Ukrinform September 2023 Missile Attack, Ukraine MOD Kh-101 Modifications
