Lionel Barber is former editor of the Financial Times. He is author of "The Powerful and the Damned: Private Diaries in Turbulent Times."
Biden under pressure to change policy of 'strategic ambiguity'

Soldiers take part in anti-invasion drill in Taoyuan, Taiwan, simulating People's Liberation Army invading the island, in October 2018: for China without a swift victory, the threat of an escalating conflict with the U.S. is real. © Reuters
Lionel Barber is former editor of the Financial Times. He is author of "The Powerful and the Damned: Private Diaries in Turbulent Times."