The software the units built themselves
In 2022 a Ukrainian artillery crew could receive a target, compute a fire solution, and adjust off drone video inside a single app on a commercial tablet. The app was not a program of record. Volunteers built it. CSIS documented how Ukraine's military went digital from the bottom, with artillery software like Kropyva spreading unit to unit until adoption hit 90 to 95 percent. The official system it displaced never got close. It died in development while the volunteer app fought a war.
The pattern repeated everywhere. Strike coordination ran through bots on messaging apps. Units wired commercial drones into targeting tools built by developers who had been civilians a year earlier. Chatham House studied the phenomenon and concluded that Ukraine's decisive innovations came from soldiers and volunteers close to the fight. Every unit that could not wait for official software built its own.
For a decade the defense industry read this pattern as a procurement failure story. Broken acquisition, heroic workarounds, a problem for better contracting to fix. That reading misses what the pattern actually is. It is a market signal. Operators at the tactical edge have a category of software need that no vendor was serving, and when the need got acute enough they built the category themselves. The right response to a signal like that is a product.