Did the U.S. threaten to shoot down Chinese BeiDou satellites?
From what I read elsewhere, they did, but China responded by showing in a practical demonstration that it had the technology to destroy the USA’s GPS satellites, so the problem went away.
Bob Thornton's share of Lin Xieyi's answer to It seems that China now has a similar satellite network like our GPS. Will it reduce the superiority of the US army? Why didn't our government stop China from developing it? in China - World Leader.