The international community can adopt restrictive measures (sanctions) against a country if the country violates international conventions and agreements. Restrictive measures can be adopted in case of e.g. violations of the human rights, a breach of ceasefires or development of illegal atomic programmes.
Restrictive measures can be diplomatic or financial in nature. Their purpose is to change a particular behaviour or policy in terms of e.g. violations of international law or the human rights, or a policy that does not respect the rule or democratic principles.
The Danish Maritime Authority administers amongst other things regulation regarding implementation of UN- and EU-sanctions within ship registrations (Law no. 1546 of 19 December 2017 – only available in Danish).