How would a stronger cross-continental railway built for Soviet naval yards change the Second World War?
Short answerIt would greatly improve logistics and could divert significant Allied supply traffic from Arctic ports to the Far East.
NotesA double-track Trans-Siberian system with useful passing and recovery sidings would transform Soviet internal logistics. The historical single-track bottleneck limited throughput and made disruptions harder to route around. Greater capacity would let supplies arriving in the Far East move west more reliably. That alternative route could reduce the need to expose as much Allied shipping to the hazardous Arctic convoy run.