Where the German army famously defied Allied theories on their metal supplies during the Second World War, the post-war German population continued to find ingenious ways to recycle. Many roofs sustained significant damage during the war, creating a need for repairs when resources were low. This jerry can, often carried by soldiers to contain water or fuel, was therefore cut open and found new purpose as roofing material, a practice applied nation-wide. This conscious mindset seems deeply ingrained in the German population as they continue to be global frontrunners on, especially consumer-side, recycling.