Containerization needed an earlier start to change Lend-Lease

How would 1930s containerization affect Lend-Lease and global logistics?

Less than expected, because the supporting ships and ports would not mature in time; an effective wartime system needed to start decades earlier.

A container is valuable only when the wider transport system can handle it. Most merchant ships and port facilities entering the Second World War would still be designed for conventional break-bulk cargo even if the idea appeared in the 1930s. Liberty ships also had to serve ordinary ports, which discouraged building the emergency fleet around specialized infrastructure. To change Lend-Lease substantially, containerization would need to begin around the 1910s and shape post-First World War investment during the 1920s.