“The reprisals” imply the revenge means used by one country against the unlawful, unjust or painful actions of another country, that has a similar weight and is as well unlawful but justified by a specific fore actions of the antagonist state. When using the reprisals the specific rules have to be considered: of proportional action – its means and meaning must by similar to the one used by the antagonist, and of humanitarian rule – the reprisals should be aimed at objective means of a country but not at the people. The aim of the reprisals is to influence an action of a given state – the object of actions – to remove its unlawful deeds or stand before a judgement of international community and returning to the status quo prior to its actions. Although the use of reprisals are legal in the international law, their usage is heavily regulated by the international agreements. The author makes a general analisys of subject discussed.