A siege is a military blockade of a city or fortress. The purpose is to conquer by starvation, lack of water, or by a well-prepared assault.

Siege warfare is a form of constant, low-intensity conflict. The defender inside has a strong, static, defensive position. Negotiation between combatants is common.

A siege happens when the attacker gets to a city or fortress which cannot be taken by storm, and which refuses to surrender. Sieges block the supplies and reinforcements or escape of men. Siege engines, artillery bombardment, and undermining are frequent. Deception and treachery are common.

Sieges can be decided by starvation, thirst, or disease. This form of siege can take many months or even years, depending upon the size of the stores of food the fortified position holds.

Well known sieges were:

Other Languages
العربية: حصار
aragonés: Setio
asturianu: Asediu
azərbaycanca: Mühasirə
Bân-lâm-gú: Pau-ûi-chiàn
беларуская: Аблога
български: Обсада
bosanski: Opsada
català: Setge
čeština: Obléhání
Cymraeg: Gwarchae
dansk: Belejring
Deutsch: Belagerung
eesti: Piiramine
Ελληνικά: Πολιορκία
English: Siege
español: Asedio
Esperanto: Sieĝo
euskara: Setio
Frysk: Belegering
Gaeilge: Léigear
galego: Asedio
한국어: 공성전
हिन्दी: घेरा
hrvatski: Opsada
Ido: Siejo
Bahasa Indonesia: Pengepungan
italiano: Assedio
עברית: מצור
Basa Jawa: Pangepungan
lumbaart: Assede
magyar: Ostrom
Bahasa Melayu: Pengepungan
Nederlands: Belegering
Nedersaksies: Belegeringe
日本語: 攻城戦
norsk: Beleiring
occitan: Sètge
polski: Oblężenie
português: Cerco
română: Asediu
русский: Осада
Scots: Siege
sicilianu: Assèdiu
slovenčina: Obliehanie
slovenščina: Obleganje
српски / srpski: Опсада
srpskohrvatski / српскохрватски: Opsada
suomi: Piiritys
svenska: Belägring
தமிழ்: முற்றுகை
Türkçe: Kuşatma
тыва дыл: Бүзээлел
українська: Облога
اردو: محاصرہ
Tiếng Việt: Cuộc vây hãm
中文: 攻城戰