AM General is proposing a tank-killing light tactical vehicle at the Association of the U.S. Army annual convention -- offering a seminal example of how the Russia-Ukraine war is changing modern combat by outfitting a next-generation Humvee with a fleet of tube-launched, anti-armor loitering drones with a defensive suite to destroy enemy uncrewed air systems. On the show floor at the exhibit, the company is displaying its Humvee Saber: Blade Edition Concept that packages a highly mobile set of offensive...