Based on sales, assets, revenue, market share, market capitalization, net worth, etc. of either or each of the parties to a merger, a transaction that takes place among two foreign entities might need the authorization of a country's antitrust regulators if the parties to the transaction have assets or businesses exceeding a certain amount in such country. Just to give you an example, the European Commission (the executive "branch" of the European Union's "central government") blocked the takeover of Honeywell by General Electric even though both companies are U.S. corporations organized under U.S. laws and paying taxes in the U.S. An even clearer example was the acquisition of CadburySchweppes by Coca-Cola. The competition regulators of several countries (Australia and Mexico come to my mind right now) blocked the transaction, even though the parties were U.S. and U.K. companies. A third example, the merger of Interbrew and AmBev will almost certainly need the approval of the U.S. regulators.
I don't know if the specific AF
/KL transaction needs the approval of the U.S. antitrust authorities (Department of Justice and/or Federal Trade Commission) or not, but I would not be surprised if that were the case.
Next flights: MEX-LAX AM 738, LAX-PVG DL 77L, SHA-PEK CA 789, PEK-PVG CA A332, PVG-ORD MU 77W, ORD-MEX AM 738