On 11 July 2014, near the border village of Zelenopillia, Ukrainian units were camped in the open. A drone loitered overhead; then came roughly three minutes of rocket fire. Phillip Karber, the American analyst who documented the strike, needed one sentence for the result: “Two Ukrainian mechanized battalions were virtually wiped out.” In the weeks that followed, John Antal records in Next War, Russian fire strikes of the same pattern hit Ukrainian positions more than fifty times. The recipe was public within months. A sensor finds your electromagnetic signature; artillery does the rest. Emit and you die.
New Year’s morning, 2023 — Makiivka, in occupied Donetsk. Hundreds of freshly mobilized Russian soldiers were packed into a vocational school, their mobile phones registering on networks the Ukrainians were watching. HIMARS rockets arrived within the hour of midnight. Russia’s defence ministry admitted 89 dead — its largest acknowledged single-strike loss of the war — and blamed, of all things, the soldiers’ phones.
Nine years separate the two strikes. Same mechanism, same signature discipline, same result, with the roles reversed. The army that wrote the lesson in 2014 could not apply it to its own barracks in 2023.
That reversal is worth stating precisely, because it breaks the comfortable theory of military failure — that armies are surprised by what they could not see. Russia saw. Russia demonstrated. Nothing about Makiivka required foresight; it required only that an institution convert its own battlefield demonstration into a standing order about telephones and troop density, and enforce it on a cold night nine years later.
The battlefield hands out its lessons for free. Learning them is the expensive part.