"On January 29, 2010, the U.S. Government released an authorization to sell more than $6 billion worth of military equipment to Taiwan. The package included 60 UH-60M Black Hawk helicopters, 114 Patriot anti-missile systems, 12 advanced Harpoon missiles, mine-hunting ships, communications equipment for Taiwan's F-16 fleet, and other national defense items. This act set off furious reprisals from China. The Chinese Foreign and Defense Min-istries immediately summoned the U.S. Ambassador and Defense Attaché, respectively, to receive China's protest over these authorized arms sales. The Chinese government also informed the U.S. officials that it would suspend some planned high-level diplomatic and military exchanges with the United States and threatened to punish those U.S. companies that make and sell weapons to Taiwan."
Army War College, Strategic Studies Institute: http://www.StrategicStudiesInstitute.army.mil/