U.S., China agree on rules for air-to-air military encounters

The United States and China have agreed on rules of behavior to govern air-to-air military encounters, U.S. defense officials said on Friday, just days after the Pentagon accused a Chinese aircraft of unsafely intercepting a U.S. spy plane. The U.S. defense officials, who spoke on condition of anonymity, said two countries also agreed to new procedures aimed at better facilitating top-level conversations between the U.S. and Chinese militaries, including during a crisis.