Which post-war surplus phenomenon first established the modern concept of 'army surplus' retail stores that became popular with civilians?

After major wars throughout history, militaries have needed to dispose of excess equipment, creating what we now know as 'army surplus' stores. This phenomenon has shaped retail history and consumer behavior in unexpected ways, connecting civilian life with military history through commerce. Test your knowledge about this fascinating intersection of military history and retail innovation!

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

The American Civil War surplus sales of the 1860s
World War I surplus distribution through government-authorized dealers in the 1920s
The Napoleonic Wars' equipment auctions of the early 1800s
World War II's Operation Plowshare surplus program of the 1940s