Kim has issued similar threats to use nuclear weapons preemptively numerous times, but his latest warning came as outside experts say North Korea could ramp up animosities ahead of next month’s U.S. presidential election.

Kim Jong Un issued his second ominous message, saying he plans to make Pyongyang a top nuclear player and expand its capabilities in face of South Korea-U.S. partnership.

Kim Jong Un reiterated that North Korea would "without hesitation" use its full attack capabilities if South Korea employed armed forces against it. This warning comes amid growing concerns over North Korea's expanding security ties with Russia.

Kim Jong Un warns that North Korea will deploy "all means of attack," including nuclear weapons, if military force is used.