A major US Marine Corps anniversary celebration at Camp Pendleton turned into a public safety and political controversy after a live artillery round exploded prematurely over a closed stretch of California’s Interstate 5. The blast damaged police vehicles and reignited criticism over the decision to conduct live-fire exercises near civilian infrastructure during a high-profile event attended by Vice President JD Vance and Defence Secretary Pete Hegseth . On Saturday, 19 October, a live artillery shell detonated mid-air over a closed portion of Interstate 5 during a military display at Camp Pendleton, north of San Diego. The explosion sent shrapnel raining down onto California Highway Patrol (CHP) vehicles stationed on the motorway, including those assigned to Vice President JD Vance’s

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