Demoralization is, in a context of warfare and national security, a process in psychological warfare with the objective to erode morale among enemy combatants and/or non-combatants, to encourage them to retreat, surrender or defect, rather than defeating or imprisoning them in combat. Methods of demoralization include hit-and-run attacks such as snipers, commerce raiding, strategic bombing, static operations such as sieges and naval blockades, disturbing the enemy with less-lethal weapons and incapacitating agents, intimidation such as display of force concentration, and propaganda.