Ukraine’s long arm disrupts Crimea, its patience breaches Russian defences

One of the biggest obstacles Ukrainian counteroffensive forces have faced is a dense network of minefields, but a report from the Royal United Services Institute (RUSI) said the depth of those minefields going forward is unpredictable. Russian forces adapted to early clashes by increasing their minefield depth from the standard 120m (394 feet) to 500m (1,640 feet) – a depth unbreachable by mine-clearing equipment.