These countries have no armed forces

Andorra - Located in the Pyrenees, between France and Spain, this small nation doesn't have its own military force.

Aruba - A constituent country of the Kingdom of the Netherlands, this Caribbean island doesn't have its own military. Instead, Aruba can count on the Netherlands.

Cayman Islands - Part of the British Overseas Territories, the Cayman Islands have their own national police force. As for military power, they have Great Britain.

Costa Rica - The Central American nation hasn't had an army since 1949. Though Costa Rica can count on the help of the US, if needed.

Dominica - This state in the Lesser Antilles has the Commonwealth of Dominica Police Force, but no standing army.

Faroe Islands - Located in the North Atlantic, the Faroe Islands count on the Danish government for defense, as they have no military.

Iceland - Although Iceland is a member of NATO, the country hasn't had a standing army since 1869. Iceland therefore relies on NATO forces for its defense.

Micronesia - This former United Nations trust territory in the Western Pacific merged in 1979 and became independent from the US in 1986.

Montserrat - A British overseas territory since 1783, this Caribbean island relies on the UK's military, as they only have a police force.

Nauru - This former British colony is the smallest republic in the world. It became independent in 1968, and currently counts on Australia to keep its people safe.

Niue - This small South Pacific island nation counts on New Zealand to help them with defense. Though Niue does have a police force to keep their little-over-1,600 inhabitants safe.

St. Vincent and the Grenadines - St. Vincent and the Grenadines were under British rule until 1979. They do have a police force, but not an official military force.

Samoa - While Samoa doesn't have a formal defense force, New Zealand has been informally ensuring the island's protection since its independence in 1962.

Solomon Islands - Despite the many conflicts over the years, the Solomon Islands have no standing army.

Tuvalu - The former British colony (then known as Ellice Islands) is the fourth-smallest state in the world. Tuvalu does have a police force, but no military.

Vatican City - Vatican City is the world's smallest independent nation-state. They do have the famous Swiss Guards to protect the pope, but no armed forces as such.