Bridging a river under enemy fire is one of the most difficult tasks any land force can face. Russia is providing the world with lessons on how not to do it, Western veterans say.
Since launching a large-scale invasion of Ukraine three months ago, Russia has managed to cross several rivers using makeshift floating bridges so its troops can advance. Many attempts have gone awry.
https://www.wsj.com/articles/ukraines-forces-sink-russian-river-crossings-inflicting-heavy-damage-11653301800 Ukraine’s Forces Sink Russian River Crossings, Inflicting Heavy Damage