War Chest is a shared storage chest in Tribes of Midgard. Found in the Village in Saga mode, the War Chest can store Materials from all players in the world which anyone can access. Once rebult, buildings near the village -- Quarry, Lumberyard, and Farm-- will deliver products from those facilities directly to the War Chest.
Any materials deposited into the War Chest will automatically used when crafting at the different stations in the village.
One Viking's trash is another Viking's treasure. Keep the Village tidy by putting unwanted items into the chest instead of dropping on the ground.
Saving your items in the War Chest before heading into a difficult battle can save you from having to retrieve your Loot Chest right away. But be careful, young Einherjar don't always know not to be greedy when it comes to taking things from the shared storage.