China sends warships and fighter jets near Taiwan during Yellen's Beijing visitbr br China’s People’s Liberation Army sent 13 aircraft and 6 vessels into airspace and waters around Taiwan over the past 24 hours as of early Saturday, overlapping with United States Treasury Secretary Janet Yellen’s visit to Beijing aimed at mending strained relations.br br Taiwan’s Defense Ministry said it is monitoring the situation from the air and sea, and land-based missile systems were prepared to respond.