On Thursday, the State Department announced arms sales to Taiwan worth $1.42 billion, the first such sale under President Trump. The sale shows "support for Taiwan's ability to maintain a sufficient self-defense capability," State Department spokeswoman Heather Nauert told reporters, but it doesn't signal any change in America's adherence to the "one China" policy; the U.S. is Taiwan's only arms supplier. The deal requires congressional approval. China reacted angrily on Friday, demanding that the U.S. cancel the sale. Chinese foreign ministry spokesman Lu Kang said the deal would pose a serious threat to China's sovereignty and security, and harm Sino-U.S. relations. The last arms sale to Taiwan was approved by former President Barack Obama in 2015.