Guarantee (international law)

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.

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