Raiding, also known as depredation, is a military tactic or operational warfare mission which has a specific purpose. Raiders do not capture and hold a location, but quickly retreat to a previous defended position before enemy forces can respond in a coordinated manner or formulate a counter-attack. A raiding group may consist of combatants specially trained in this tactic, such as commandos, or as a special mission assigned to any regular troops. Raids are often a standard tactic in irregular warfare, employed by warriors, guerrilla fighters or other irregular military forces. Some raids are large, for example the Sullivan Expedition. The purposes of a raid may include: to demoralize, confuse, or exhaust the enemy; to ransack, pillage, or plunder to destroy specific goods or installations of military or economic value; to free POWs to capture enemy soldiers for interrogation; to kill or capture specific key persons; to gather intelligence. Among many tribal societies, raiding was the most common and lethal form of warfare. Taking place at night, the goal was to catch the enemy sleeping to avoid casualties to the raiding party. Cattle raiding was a major feature of Irish society in the Iron Age and forms the central plot of the historical epic Táin Bó Cúailnge (English: Cattle Raid of Cooley). The traditional habit of Bedouin tribes of raiding other tribes, caravans, or settlements is known in Arabic as ghazzu. Such activity was still noticed by J. S. Buckingham in 1820s Palestine not only among nomadic Bedouin, but also among the nominally sedentary villagers of er-Riha (Jericho), who left the little land cultivation he observed to women and children, while men spent most of their time riding through the plains and engaging in "robbery and plunder", their main and most profitable activity. List of battles of Muhammad The Islamic prophet Muhammad made frequent use of raiding tactics. His first use of raids was during the caravan raids, and his first successful raid was the Nakhla raid.