SEOUL, South Korea (AP) -- South Korea on Tuesday warned North Korea that using its nuclear weapons would put it on a "path of self-destruction," in unusually harsh language that came days after North Korea legislated a new law that would allow it to use its nuclear weapons preemptively.
North Korea will likely be infuriated by the South Korean rhetoric as Seoul typically shuns such strong words to avoid raising tensions on the Korean Peninsula.
Despite North Korea's increasingly aggressive nuclear doctrine, some experts say the country -- outgunned by more superior U.S. and South Korean forces -- will still unlikely use its nuclear weapons first.
South Korea's Defense Ministry said the legislation would only deepen North Korea's isolation and prompt Seoul and Washington to "further strengthen their deterrence and reaction capacities."
To deter North Korea from using its nuclear weapons, the ministry said South Korea will sharply boost its own preemptive attack plan, missile defense and massive retaliation capacities while seeking a greater U.S. security commitment to defend its ally with all available means, including nuclear one.
"We warn that the North Korean government would face the overwhelming response by the South Korea-U.S. military alliance and go on the path of self-destruction, if it attempts to use nuclear weapons," Moon Hong Sik, an acting ministry spokesperson, told reporters.
White House press secretary Karine Jean-Pierre earlier said the United States "remains fully committed to the defense of (South Korea), using the full range of defense capabilities." Jean-Pierre said the United States has no hostile intent toward North Korea and that it remains focused on pursuing close coordination with its allies to advance a shared objective of the complete denuclearization of the Korean Peninsula.
Last week, North Korea's rubber-stamp parliament adopted the legislation on the rules for the use of its nuclear arsenal. It would allow the use of nuclear weapons if its leadership faced an imminent attack or if it aims to prevent an unspecified "catastrophic crisis" to its people.
The loose wording raised concerns the rules are largely meant as a legal basis for a preemptive nuclear strike to intimidate rivals into making concessions amid long-stalled negotiations over its arsenal. Some experts say the North Korean move is also designed to strengthen the control of Kim Jong Un's leadership in the face of hardships caused by the pandemic and border closures.
During the parliament's meeting, Kim said in a speech that his country will never abandon its nuclear weapons to cope with U.S. threats. He accused the United States of pushing to weaken the North's defenses and eventually collapse his government.
Earlier this year, Kim said his nuclear weapons would never be confined to the sole mission of war deterrent and could be used preemptively if his country's national interests are threatened. North Korea later approved plans to assign new duties to front-line army units, sparking speculation it was a step toward deploying battlefield nuclear weapons along its border with South Korea.
This year, Kim has also dialed up weapons tests to a record pace by test-launching a slew of nuclear-capable ballistic missiles targeting both the U.S. mainland and South Korea. For months, U.S. and South Korean officials have said North Korea could carry out its first nuclear test in five years as well.
Since taking office in May, South Korea's new conservative government, led by President Yoon Suk Yeol, has said it would take a tougher stance on North Korean provocation but also offered massive support plans if the North denuclearizes. North Korea has bluntly rejected that aid-for-disarmament offer and unleashed crude insults on the Yoon government.
Seoul's use of words like "self-destruction" is unusual but it's not the first time. When South Korea was governed by another conservative leader, Park Geun-hye, from 2013-2017, her government also warned North Korea would evaporate from Earth or self-destruct with its provocations, as the North conducted a slew of missile and nuclear tests.
Liberal President Moon Jae-in, who served from 2017 until this year, championed greater reconciliation between the Koreas. He was credited for arranging now-stalled nuclear diplomacy between Pyongyang and Washington but also faced criticism that such a diplomacy only allowed Kim Jong Un to buy time to prefect weapons technology while enjoying an elevated standing on the world stage.