US, China defence chiefs lock horns on Taiwan at Asia security summit ReutersAustin expresses ‘concern’ over China’s activities in South China Sea CNBCU.S. and Chinese Defense Chiefs Hold First In-Person Talks Since 2022 The New York TimesUS, China defence chiefs hold rare talks on Taiwan, South China Sea Al Jazeera EnglishUS and Chinese defense chiefs hold first in-person talks since 2022 CNN