China on Friday threatened the U.S. with unspecified "countermeasures" if it follows through with a planned sale of F-16s fighter jets to Taiwan – the first of what will likely be many repercussions for the Trump administration's military support for a country Beijing considers a renegade province.

News of the planned sale emerged early Friday after the State Department informed Congress Thursday evening of the administration's intent to sell 66 of the Fighting Falcon jets to Taiwan. Leaders of the Senate Foreign Relations and House Foreign Affairs committees – which would need ultimately to approve the sale – issued statements of support shortly after. The chairman and ranking member of the House committee called the sale "a strong message about the U.S. commitment to security and democracy in the Indo-Pacific" against China's "military aggression in the region."

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