Hagel takes aim at China

Defense Secretary Chuck HagelCharles (Chuck) Timothy HagelHagel: Trump is 'an embarrassment' Tax cut complete, hawks push for military increase Pentagon documents hundreds of serious misconduct cases against top brass MORE criticized China on Saturday for its territorial claims in the South China Sea, as well as for its cyber-hacking.

"All nations of the region, including China, have a choice: to unite, and recommit to a stable regional order, or, to walk away from that commitment and risk the peace and security that has benefited millions of people throughout the Asia-Pacific, and billions of people around the world," Hagel said in a speech while speaking at a conference in Singapore.

Hagel also criticized the Chinese for cyber-hacking. Last week, U.S. officials charged five Chinese military officers in connection with hacking U.S. companies.

The Chinese then suspended their involvement from a U.S.-China Cyber Working Group.

Hagel said that "dialogue is essential for reducing the risk of miscalculation and escalation in cyberspace."