• A neutral territory exists between the British crown colony of Gibraltar (an enclave, entirely claimed by its only neighbour) and Spain. A strip of land of width "600 toises, being more than 2 cannon shots distance between the British guns and the Spanish guns" would be considered "the neutral ground" stipulated by the Treaty of Seville in 1729. In 1908 the British constructed a fence at the British side of the neutral territory. In order not to offend the Spanish, the fence was actually 1 metre inside British territory. Even though both the United Kingdom and Spain are part of the European Union, the border fence is still relevant today since Gibraltar maintains its tax haven status. The border crossing is open 24-hours a day to facilitate customs collection by Spain.

Demilitarized zone - Asia

• Kuwait-Iraq neutral zone
• Saudi-Iraqi neutral zone
• The Korean Demilitarized Zone separates North Korea and South Korea. It was created by the United Nations in 1953 at the end of the Korean War.

Demilitarized zone - Antarctica

Article 1 of the main Antarctic Treaty forbids military activity in Antarctica, though military personnel and equipment may be used for peaceful purposes.