That is a great question! Would we have to buy tanks, planes, trucks, and guns from the Chinese, if we were at war with them or a country that they support. Remember in Vietnam and Korea, the Chinese supported the North Vietnamese and North Koreans. Jeeps and Humvees and other Big 3 military trucks have been and are still used today by the military.

This is the problem with all this corporate globalism, Take a look at the Steel plants in Detroit, Rouge Steel has already sold out to Severstal a russian firm, And, from what I've heard Japanese firms have a big stake in U.S Steel. If global unemployment and stability was to spiral downward, and some new wars broke out.
Would these foreign owned firms do all they could to deny access to these plants, if our government needed to get in there to produce war materials, that might be used against their homeland ? My guess is yes, but it could also harm trade relations with countries if our government had to go in and take over operations to produce war materials, even if it wasn't to be used against their homeland. to try and explain. The U.S gets in a war in somewhere in the Mid east or Africa. It doesn't effect the Japanese or Russians in any way. But because the U.S had to go in and interfere with operations to have military orders put ahead of whatever they were building, we in a sense would ruin their business and they would turn around and sue the government ect...

I think that you are really stretching here if you try to make this out as a Dem issue, this is something that is squarly something the South GOP is doing.