A veteran international civil servant, Jessen-Petersen would become Kosovo's fifth UN governor since June 1999, when the province was placed under UN administration following NATO's 78-day campaign to drive out Serb forces.
Veteran u međunarodnoj javnoj službi, Jesen Petersen postaće peti administrator UN-a na Kosovu od juna 1999. godine kada je, nakon 78-dnevne vazdušne kampanje NATO-a usmerene na proterivanje srpskih snaga, pokrajina stavljena pod upravu UN-a.