Russia has an extensive network of entrenched defenses across the entire front line, but particularly in southern Ukraine, where Ukraine’s biggest strategic victory would be won—the severing of the “land bridge” connecting mainland Russia to the Crimean peninsula.
Brady Africk has done unbelievable work using satellite imagery to map out these defenses:
Ukrainian forces pushing south haven’t even reached the first line of those fortifications, as breach operations are brutally difficult and expensive in blood and equipment.
But Russia’s destruction of the Kakhovka dam opens up an intriguing new possibility, as entire swaths of former reservoir empty out.