BEIJING - Chinese military websites were attacked an average 144,000 times a month in 2012 by foreign hackers, with 62.9 percent from the United States, a military spokesman said Thursday.

Official websites of the Ministry of National Defense (MND) and China Military Online, sponsored by PLA Daily of the Chinese People's Liberation Army, have been severely threatened by cyber attacks since their establishment. There has also been an increase in attacks in recent years, Geng Yansheng, MND spokesman, said at a press briefing.

The US government's "pre-emptive" policy against attacks by expanding its cyber war force and setting rules on cyber war, exposed by the American media, will not be constructive in promoting cyber security among the international community, Geng said.