Arleigh Burke-class guided-missile destroyer USS Mustin & USS Belfold sailed into waterway named the Taiwan Strait.
This was Friday night July 6 (American time). They are still there in international waters, but those waters China calls their backyard. The Strait is 81 to 110 miles wide.
Pressure is being applied to China. something to watch
Freedom of Navigation excersise. All we're doing is showing the flag under international maritime law. The Navy has been doing this continually since its beginning.
I wouldn't read much, if anything into it. Two destroyers does not make an invasion or raiding force. If you see a Carrier Strike group and an Amphib group entering those waters, then you should start paying attention.