Kim Jong Un (centre) attends a meeting of the Central Military Commission in Pyongyang, North Korea. AP

Members of the ruling Workers’ Party’s Central Military Commission decided to supplement an "important military action plan” on the duties of front-line troops and further strengthen the country’s nuclear war deterrent, state media said on Friday.

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North Korea hasn’t specified the new operational duties for front-line army units, but analysts say the country could be planning to deploy battlefield nuclear weapons targeting rival South Korea along their tense border.

While North Korea's pursuit of nuclear-capable ballistic missiles that could reach the U.S. mainland gets much of the international attention, it is also developing a variety of nuclear-capable short-range missiles that can target South Korea. Experts say its rhetoric around those missiles communicates a threat to proactively use them in warfare to blunt the stronger conventional forces of South Korea and the United States. About 28,500 U.S. troops are stationed in the South to deter aggression from the North.

Kim Jong Un holds a meeting with military commission in Pyongyang, North Korea. Reuters

Kim during the military commission's three-day meeting that ended Thursday called for his entire army to "go all out” in carrying out the plans to bolster the nation’s military muscle and consolidate "powerful self-defense capabilities for overwhelming any hostile forces and thus reliably protect the dignity of the great country.”

The report by the North’s official Korean Central News Agency did not include any direct criticism toward Washington or Seoul amid a prolonged stalemate in nuclear negotiations.

Jolting an old pattern of brinkmanship, North Korea has already set an annual record in ballistic testing through the first half of 2022, firing around 30 missiles in over 18 launch events, including its first tests involving intercontinental ballistic missiles in nearly five years.

Kim has punctuated his recent tests with repeated comments that North Korea would use its nuclear weapons proactively when threatened or provoked, which experts say portend an escalatory nuclear doctrine that may create greater concerns for neighbors.