As Ukraine’s war against Russia drags on, the country has found itself engaged in the kind of trench warfare that once seemed unthinkable in the modern age. This kind of warfare requires very old battlefield technology — and its tearing through the US’s stockpile.

Today on the show, host David Gura speaks with Bloomberg reporters Billy House and Roxana Tiron about the World War II-era factories in America ramping up production to meet Ukraine’s ammunition needs. And he hears from Ukrainian Sergeant Andrii Shadrin about how this shortage is playing out on the frontlines.