H.R. McMaster, then President Donald Trump’s national security adviser, attends the World Economic Forum in Davos, Switzerland, on Jan. 25, 2018. In an NPR interview, McMaster says the United States and its allies need to “compete more effectively” with China.

FILE – This Jan. 25, 2018 file photo shows then National Security Adviser H.R. McMaster during a meeting at the World Economic Forum in Davos, Switzerland. HarperCollins Publishers said, Wednesday, July 11, that McMaster’s upcoming book, “Battlegrounds,” is scheduled for release in 2020. The book will cover his 34-year military career and his year as national security adviser under President Donald Trump. (AP Photo/Evan Vucci, File)