SYDNEY — Australia on Monday approved a United States extradition request for former U.S. Marines pilot Daniel Duggan, who faces charges including breaking U.S. arms control law by training Chinese military pilots to land on aircraft carriers.

Duggan, 55, a naturalised Australian citizen, was arrested by Australian Federal Police in a rural town in New South Wales state in October 2022, shortly after returning from China, where he had lived since 2014.

Duggan’s lawyers have argued in court…