"Stop babbling and shut your mouth immediately." Kim Jong Un's sister doesn't hold back.

North Korea's Kim Yo Jong announced readiness for military action along the southern border, warning of immediate retaliation for any missteps by South Korea. Tensions escalated after a mine explosion injured South Korean soldiers, which North Korea denied responsibility for. South Korean politician Kim Byung-joo criticized the North's claims, prompting a sharp response from Kim Yo Jong. Analysts suggest the announcement aims to pressure Seoul without escalating to open conflict, as both Koreas remain technically at war since the 1950-53 conflict ended in an armistice.