opposition leaders, extort cash from targets, intimidate the general population, create economic losses, and keep followers and potential defectors in line. The widespread use of terror by guerrillas and their opponents is a common feature of modern guerrilla conflicts, with civilians attempting to mollify both sides. At times, a civil population may be the main targets of guerrilla attacks, as in Palestinian operations against Israeli civilians, or Israeli and local allies operations against Palestinian refugee civilians during the Lebanon conflict like the Sabra and Shatila massacre. Such tactics may backfire and cause the civil population to withdraw its support or to back countervailing forces against the guerrillas . Withdrawal Guerrillas must plan carefully for withdrawal once an operation has been completed or if it is going badly. The withdrawal phase is sometimes regarded as the most important part of a planned action, as getting entangled in a lengthy struggle with superior forces is usually fatal to insurgent, terrorist or revolutionary operatives. Withdrawal is usually accomplished using a variety of different routes and methods and may include quickly the scouring of the area for loose weapons, the cleaning-up of evidence, and the disguising as peaceful civilians. In the case of suicide operations, withdrawal considerations by successful attackers are moot, but such activity as eliminating traces of evidence and hiding materials and supplies must still be done. Logistics Guerrillas typically operate with a smaller logistical footprint than to conventional formations, but their logistical activities can be elaborately organized. A primary consideration is to avoid depending on fixed bases and depots, which are comparatively easy for conventional units to locate and destroy. Mobility and speed are the keys; wherever possible, the guerrilla must live off the land or draw support from the civil population in which it is embedded. In that sense, "the people" become the guerrilla's supply base. The financing of terrorist or guerrilla activities ranges from direct individual contributions (voluntary or non-voluntary) to the actual operation of business enterprises by insurgent operatives to bank robberies and kidnappings to the complex financial networks that are based on kin, ethnic and religious affiliation used by modern jihadist/jihad organizations. Permanent and semi-permanent bases form part of the guerrilla logistical structure, which are usually located in remote areas or in cross-border sanctuaries that are sheltered by friendly regimes. They can be quite elaborate, such as in the tough VC/NVA fortified base camps and tunnel complexes