leaflets

Airborne leaflet dropping is a type of propaganda where leaflets (flyers) are scattered in the air, normally by filling cluster bombs that open in midair with thousands of leaflets.
Military forces have used aircraft to drop leaflets to attempt to alter the behavior of combatants and non-combatants in enemy-controlled territory, sometimes in conjunction with air strikes. Humanitarian air missions, in cooperation with leaflet propaganda, can turn the populace against their leadership while preparing them for the arrival of enemy combatants.
Leaflet droppings have also been used to limit civilian casualties by alerting civilians of imminent danger allowing time to evacuate targeted areas.

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