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What happened: North Korea launched more than 10 short-range ballistic missiles from the Pyongyang area toward the sea on August 20, prompting South Korea to convene an emergency national-security meeting and raise military readiness. The launches came just a day after Pyongyang dismissed President Trump’s decision to substantially reduce joint U.S.–South Korean military exercises. (Business Recorder)

Human cost: No casualties or damage were reported; the missiles fell into waters east of the Korean Peninsula. (AP News)

Why it matters: The sequence is strategically important. Washington had reduced one of its largest annual exercises with South Korea partly as an overture to Kim Jong Un. Pyongyang responded not with talks, but with a sizeable ballistic-missile salvo—while Kim Yo Jong argued that the underlying U.S. “hostile policy” had not changed. That weakens hopes that the drill reduction alone will reopen diplomacy and raises the possibility of another cycle of military signaling on the peninsula. (Reuters)

What changed: The prior development was a unilateral U.S. attempt to lower military tensions. North Korea has now answered that move with its largest reported missile salvo of this episode, showing that de-escalation is not yet reciprocal.