To point out what should have been pretty obvious, China has to do the military build up if it wants the US to believe they will actually invade Taiwan. It’s a

To point out what should have been pretty obvious, China has to do the military build up if it wants the US to believe they will actually invade Taiwan. It’s a costly signal, and it has to be costly or it won’t be believed, sure sending a memo would have been cheaper but without also doing the work no one would believe them.