North Korea has announced that it conducted a simulated “tactical nuclear attack” drill with two long-range missiles equipped with mock atomic warheads, saying the country is ready in the event of nuclear war.   The KCNA news agency, in a report on Sunday, September 3, said the drill was carried out early on Saturday to “warn enemies” that the country would be prepared in case of nuclear war and pledged again to bolster military deterrence against South Korea and the …