Mike Pompeo says free world must change China or 'China will change us'

US secretary of state Mike Pompeo has called on “free nations” to triumph over the threat of what he said was a “new tyranny” from China, in a provocative speech likely to worsen fraught US-China relations.

“Today China is increasingly authoritarian at home, and more aggressive in its hostility to freedom everywhere else,” Pompeo said in a speech on Thursday at the Richard Nixon presidential library in Yorba Linda, California.

“If the free world doesn’t change Communist China, Communist China will change us,” he said, Pompeo said Nixon’s worry about...