When the US Air Force awarded the contract for a KC-135 air refueling tanker replacement to European company EADS, American aircraft manufacturer Boeing went crazy. They brought out the lawyers and argued that although the EADS Airbus A330 tanker had out performed the Boeing's B767, the competition was unfair and should be re-accomplished. Boeing wants the criteria for the new tanker adjusted to favor their products. Although I'm not sure they ever said it directly, a large part of their argument seems to be that it's not fair to have a European company providing aircraft on a multi-billion dollar US military contract. EADS, of course, is arguing that they still have the better product and that the US military should select the product that will do the best job of taking care of our troops...no matter where it comes from. I think the argument is pretty stupid and that we're wasting literally years delaying the A330 tanker; however, Boeing got what it wanted and the competition is open again.
I bet they never expected a third company to throw them for a loop though. Ukrainian (formerly Soviet) aircraft manufacturer Antonov has entered the competition with the help of a US partner, US Aerospace. Antonov is submitting proposals for 3 different aircraft, and they may be able to out-perform both competitors. I wonder how Boeing is feeling now about the can of worms they've opened.