A guarantee ensures the fulfilment of international obligations by a state promising to help another state fulfill its obligations when they are hindered by a third party.^[1]

Previously, other methods to ensure fulfillment of international obligations, like oaths or the receiving of hostages, were also called guarantees.^[1]

One example of such an obligation can be neutrality.^[1] For example, before World War I, the neutrality of Switzerland, Belgium and Luxembourg had been guaranteed.^[1]

See also[edit]

• Treaty of London (1839)
• Swiss neutrality
• Treaty of London (1867)

References[edit]