The international law of armed conflict grants rights and imposes duties upon the non-participants, which are known as neutrals and the relevant legal regime as neutrality. Occasionally it is conceded that in certain circumstances a neutral may offer assistance to one of the belligerents on the basis of benevolent neutrality. A neutral has the right to permit belligerent troops to take refuge in its territory, but must intern them and prevent them from taking any further part in the conflict. If the neutral is a party to the Prisoners of War Convention, their treatment, if interned, must at least equal that required for prisoners of war. Subject to any regulations imposed by their government, neutral nationals may continue trading with either or both belligerents, but the articles involved are liable to seizure as prize.