Direct proof of use
The RQ-11B Raven is documented in the 2014 Russia-Ukraine War through U.S. contracting records, Ukrainian delivery reporting, and Reuters reporting on the systems after they reached the front. A September 2015 U.S. Department of Defense contract notice recorded a foreign military sales contract for RQ-11B Raven small UAV systems for Ukraine.
Ukraine received the systems in 2016. ZN.ua, citing Ukraine's Ministry of Defense, reported that RQ-11B Analog Raven systems arrived in Kyiv on July 27, 2016, under the European Reassurance Initiative as non-lethal assistance for the Armed Forces of Ukraine. Reuters reporting republished by Voice of America later described 72 Raven RQ-11B Analog mini-drones after their arrival that summer and said they were intended to give Kyiv's military portable, lightweight, unarmed surveillance drones small enough for wide field use.
Sources: Contracts For Sep. 14, 2015, ZN.ua Raven Delivery, VOA Reuters Ukraine Drones
Timeline
The public timeline begins with the September 2015 U.S. contract award for RQ-11B Raven systems for Ukraine. The contract set a May 2016 completion date, placing the Raven package in the early U.S. non-lethal assistance phase of the war.
On July 27, 2016, Ukrainian reporting citing the Ministry of Defense said RQ-11B Analog Raven systems had arrived in Kyiv. By December 2016, Reuters reported from the front-line context that the 72 drones had disappointed Ukrainian officials because Russian and separatist electronic-warfare capabilities could intercept and jam video feeds and data.
Sources: Contracts For Sep. 14, 2015, ZN.ua Raven Delivery, VOA Reuters Ukraine Drones
Operational role
The documented role was reconnaissance and surveillance, not an armed strike role. ZN.ua described the Raven package as non-lethal and noted the aircraft's day or night camera, hand-launching, and 10 km operating radius. Reuters described the hand-launched Ravens as unarmed surveillance drones meant to be portable and widely used in the field.
The same Reuters account is also the main open-source evidence for the systems' limits in Ukrainian service. Ukrainian officials said the analog Ravens were ineffective against jamming and hacking, and Ukraine's Air Force command acknowledged that Russian and separatist forces could intercept and jam the drones' video feeds and data. The record therefore supports fielded Ukrainian surveillance use and reported operational dissatisfaction, but it does not by itself document a specific Raven-collected battlefield intelligence product, target acquisition event, or strike.
Sources: ZN.ua Raven Delivery, VOA Reuters Ukraine Drones