The luchtalarm is the Dutch name for the air raid alarm used in the Netherlands as a public warning system, with its rising and falling siren long associated with wartime alerts and civil emergencies. The sound became widely recognisable outside the Netherlands through news footage, documentaries and online videos, where its unmistakable wail is instantly understood as a signal of danger. Editors now reuse short edits like this one for war films, historical explainers and dramatic memes, because the tone needs no translation to create a sense of urgency.