China has achieved “significant progress” in developing new nuclear weapons, but will never use them first, Chinese Defense Minister Wei Fenghe said on Sunday.

“I wonder if you have seen China’s 70th Anniversary National Day military parade, and the new weapons and equipment available to the Chinese military… But we don’t engage in an arms race,” the defense minister said.

He also stated that China will continue to observe its “self-defense nuclear policy,” which means the weapons are being developed “to safeguard national peace” and “avoid the catastrophe of nuclear war.”