The biggest change in recent months has come from Ukraine’s newly developed midrange drones, which have allowed Kyiv for the first time to strike behind the front line, hitting Russian ammunition depots, supply convoys, headquarters and large concentrations of troops, sources say.

The wave of almost 600 Ukrainian drones struck overnight across 14 Russian regions

Four killed as Kyiv vows retaliation after Russia’s devastating attacks on Ukraine

Ukraine's drone attack on Moscow underlines its growing success in the war.