I wouldn't call it investment. It's contracted and they are asked to do the work in their country. The ownership is all over the place. British Aerospace owns the fourth-largest defence contract in the United States. It's a British company. Most British companies are owned by the French, but they do their work in the countries according to the laws of the countries--another big misconception around.
On April 1st, 2008. See this statement in context.