“The Ohio-based company manufactures engines, avionics and electrical systems used in fighter jets, helicopters, ships and other defense platforms, forming a critical layer of infrastructure across the US military’s fleet.”

“Oshkosh Defense, a unit of Oshkosh Corporation, builds the kinds of vehicles US troops drive into combat — from light armored trucks to heavy-duty transport systems — but the company’s broader business is largely focused on civilian equipment.”

“The Wisconsin-based manufacturer produces everything from fire trucks and airport rescue vehicles to construction lifts and garbage trucks across its portfolio of brands.”

“GM operates GM Defense, which builds platforms like the Infantry Squad Vehicle for the US Army and is developing next-generation tactical and fuel-cell-powered military vehicles.”

“Ford, by contrast, does not have a standalone defense division, with its trucks and SUVs typically modified by third parties for specialized roles rather than produced as purpose-built military systems.”