Once it became apparent that the Soviets would have to get their hands dirty, they followed three main strategies aimed at quelling the uprising. Intimidation was the first strategy, in which the Soviets would use airborne attacks and armored ground attacks to destroy villages, livestock and crops in trouble areas. The Soviets would bomb villages that were near sites of guerrilla attacks on Soviet convoys or known to support resistance groups. Local peoples were forced to either flee their homes or die as daily Soviet attacks made it impossible to live in these areas. By forcing the people of Afghanistan to flee their homes, the Soviets hoped to deprive the guerrillas of resources and safe havens. The second strategy consisted of subversion, which entailed sending spies to join resistance groups and report information as well as bribing local tribes or guerrilla leaders into ceasing operations. Finally, the Soviets used military forays into contested territories in an effort to root out the guerrillas and limit their options. Classic search and destroy operations were implemented using Mil Mi-24 helicopter gunships that would provide cover for ground forces in armored vehicles. Once the villages were occupied by Soviet forces, inhabitants who remained were frequently interrogated and tortured for information or killed.