This is a list of the 25 countries that do not maintain an army.

•  Andorra - Can call upon France or Spain for defence matters, but these countries do not have an obligation to respond. Similar treaties with both, June 3, 1993.
•  Costa Rica - The constitution forbids a standing military in times of peace, but have unit of regional security - 7500 guardsman. Seat of the InterAmerican Court of Human Rights. Seat of the United Nations University of Peace.
•  Dominica - No standing army since 1981, after the army attempted a coup, but have state police - 300 men.
•  Grenada - No standing army since 1983, after the U.S. led invasion, but have unit of regional security - 750 guardsman.
•  Haiti - But the rebels have demanded its reestablishment. The National Police maintains some military units 7300 active troops.
•  Iceland - Iceland has no standing army, but is a member of NATO. There is a defence agreement with the U.S. which maintains, with other NATO countries, a base in the country.
•  Kiribati - The only forces allowed are the police and the coast guard.
•  Liechtenstein - Abolished the army 1868 because it was too costly. No defense agreement with foreign countries. Army is forbidden in times of peace, but have state police - 100 men.
•  Maldives - Never had an army. Was invaded by mercenaries in 1988, and rescued by India. No known permanent defence treaty.
•  Marshall Islands - Defence is the responsibility of the United States.
•  Mauritius - A multicultural country without an army, but with mobile state police - 1800 men.
•  Micronesia - Defence is the responsibility of the United States.
•  Monaco - Renounced to military investment in the 17th century when realized the expansion of cannon range had rendered it defenseless. Defence is the responsibility of France.
•  Nauru - Under an informal agreement, defense is the responsibility of Australia
•  Palau - The only country with an anti-nuclear constitution. Defence is the responsibility of the United States.
•  Panama - Abolished the army in 1990, confirmed by a parliamentary unanimous vote for constitutional change 1994. The army is forbidden at all times. Some units within the Public Force (Police, Coast Guard, Air Service and Institutional Security) have limited warfare capabilities - 11800 active troops.
•  San Marino - Maintains a ceremonial guard, a police and a border force.
•  Solomon Islands - Has known a heavy ethnic conflict between 1998 and 2001, in which Australia and other Pacific countries finally intervened to restore peace and order. No standing army.
•  Saint Kitts and Nevis - Maintains a small defence force for internal purposes.
•  Saint Lucia - Maintains a "special service" unit.
•  Saint Vincent and the Grenadines - Maintains a "special service" unit.
•  Samoa - No standing army. Defence is the responsibility of the New Zealand.
•  Tuvalu - A small Pacific country that might totally disappear because of climate warming and rising seas.
•  Vanuatu - Has a small mobile military force - 300 men.
•  Vatican City - The ceremonial Swiss Guard acts as a security police force.

Marshall Islands, Micronesia, Monaco and Palau have no say in defence matters and little say in international relations. Niue and the Cooks islands have cooperative agreements. Andorra can call for help. Iceland has a defence agreement. All the others (19 countries) stand fully responsible and independant, without an army, for defence matters. Seven of them (Costa Rica, Dominica, Grenada, Haiti, Liechtenstein, Monaco and Panama) went through a process of demilitarisation. All the 20 others, including Andorra 700 years ago, were born without an army. They are all said to be in a situation of "non militarisation".