 Nyorera kupfuurira kweiyi ndima - Muna 2015 Jan Roos aive mutungamiri wemushandirapamwe we GeenPeil, mushandirapamwe wakawana referendamupamusoro pe EU-Association Treaty neUkraine mumabhuku. Mukati meiyi nhimbe Jan Roos kazhinji kazhinji aipfeka ngowani yomufambisi wengarava. GeenPeil akazomhanya sebato rezvematongerwo enyika musarudzo dzegore ra2017, asi akatadza kuwana mavhoti akakwana kuti akunde chero zvigaro muparamende yeDutch. Roos akasarudza kuita mushandirapamwe semutungamiri webato reVoorNederland, asi akakundikanawo kuhwina chigaro chimwe chete. 