ED Nuclear red lines

A B-2 Stealth Bomber flies over the Washington Monument at the National Mall during Independence Day celebrations in Washington D.C., July 4, 2020. AFP-Yonhap

South Korea is watching with growing concern as the conflict in the Middle East enters a dangerous new phase, following the United States' airstrikes on Iran’s nuclear facilities. On Sunday, the U.S. dropped GBU-57 Massive Ordnance Penetrators, better known as "bunker buster" bombs, on several key Iranian nuclear sites, including Fordow, Natanz and Isfahan.

This military intervention is a game-changing moment. It will not only alter the trajectory of the conflict between Israel and Iran but also carry significant implications for the Korean Peninsula.

For South Korea, the war in the Middle East is far from being "a fire on the other side of the river" — a Korean expression used to describe a distant issue with no direct bearing on domestic interests. Quite the opposite is true in this case.

As an export-driven economy, South Korea depends on the Middle East for over 70 percent of its crude oil imports. Instability in the region directly affects global oil prices, which in turn exerts pressure on Korea’s economy.

This time, however, rising oil prices are only part of the concern. The war — and how it develops — could influence the geopolitical balance in East Asia.

The U.S. justified its military action as a necessary step to protect itself and its regional allies from Iran’s nuclear threat. U.S. President Donald Trump declared that Iran’s nuclear enrichment facilities had been "completely and totally obliterated," a claim denied by Iranian officials.

Through these large-scale airstrikes, the U.S. sent a clear message: Iran must not possess nuclear weapons. Iran, on the other hand, maintains that its nuclear program is peaceful and will continue.

The conflict in the Middle East has raised alarm in East Asia, especially concerning North Korea, which is actively pursuing nuclear weapons and developing intercontinental ballistic missiles (ICBMs) capable of reaching the U.S. mainland. While Pyongyang claims its ICBM technology is fully capable, experts disagree on whether it has achieved operational readiness. Still, North Korea’s recent efforts to obtain sensitive missile and nuclear technologies from Russia are cause for heightened concern.

The U.S. targeted Iran’s uranium enrichment sites — especially the heavily fortified facility at Fordow — to cripple its nuclear infrastructure. This raises an uncomfortable question: could a similar U.S. strike be considered against North Korea, which already claims to possess operational nuclear-capable ICBMs?

From Washington's perspective, North Korea’s nuclear arsenal poses a more immediate and credible threat than Iran's. The U.S.’ preemptive, rather than reactive, approach in Iran fuels speculation in Seoul that a similar scenario could one day unfold on the Korean Peninsula. Yet some raise skepticism over this view, citing the North's possession of dozens of nuclear warheads which could be used against South Korea, Japan and even Guam in the case of possible U.S. attacks against Pyongyang.

Rep. Ahn Cheol-soo of the People Power Party suggested that can happen. “The essence of the Israel-Iran conflict lies in nuclear weapons,” he wrote on social media Sunday. “Once tensions in the Middle East ease, North Korea will be next.” Ahn argued that Israel's surprise attacks aimed to halt Iran's nuclear development, and the U.S. intervened to protect itself.

Given these developments, the Lee Jae Myung administration must remain vigilant and adopt proactive strategies to mitigate potential fallout. The Israel-Iran conflict has already deviated from past patterns of regional unrest, especially after U.S. military involvement. The possibility of a similar military escalation in Northeast Asia is now more than hypothetical.

This conflict goes far beyond oil supply disruptions. Its implications are broad, complex and potentially far-reaching. The Korean government must prepare for a range of scenarios — known, unknown, foreseeable and unforeseen — and respond with strategic flexibility.

Close coordination with Washington is also essential. In this context, it is regrettable that Lee chose to skip the North Atlantic Treaty Organization (NATO) summit scheduled for later this week in the Netherlands. According to the presidential office, his decision to skip the summit is due to the ongoing Middle East crisis. Yet this is precisely when high-level diplomacy with the U.S., NATO members and Indo-Pacific allies is most critical.

Lee and his foreign policy team should reconsider whether it is still possible to adjust his schedule and attend the summit. With tensions rising globally, a unified diplomatic front has never been more important.