[solidsnack9000]

Well, it doesn't make sense to treat a local branch of a foreign company like a foreign company for tariff reasons -- one role of tariffs is to encourage local branches.

For example, Toyota builds cars in the USA; and rigorously controls how Toyota USA builds cars in the USA. That's actually kind of the point -- from an industrial policy standpoint, it is valuable and useful if companies bring their technology and approaches here and administer them with their knowhow.

Regarding government contracts, it could probably come down to some percentage of ownership or the way control is administered; but many defense companies are publicly traded and that means they can be owned in part by foreign entities (people or corporations).