unsuccessful

... 1. Persons belonging, or having belonged, to the armed forces of the occupied country, if the occupying Power considers it necessary by reason of such allegiance to intern them, even though it has originally liberated them while hostilities were going on outside the territory it occupies, in particular where such persons have made an unsuccessful attempt to rejoin the armed forces to which they belong and which are engaged in combat, or where they fail to comply with a summons made to them with a view to internment. ...

... Article 88, fourth paragraph, notwithstanding, prisoners of war punished as a result of an unsuccessful escape may be subjected to special surveillance. Such surveillance must not affect the state of their health, must be undergone in a prisoner of war camp, and must not entail the suppression of any of the safeguards granted them by the present Convention. ...