Does it mean "reducing the member countries of the EU"?
With previous opinion polls also showing such opposition, Le Pen has said for months that if elected she would not abruptly withdraw from the euro but instead hold a referendum after six months of negotiation with the rest of the EU on a range of issues including leaving the border-free Schengen agreement and reducing the EU to a loose cooperative of nations.
Source: http://www.cnbc.com/2017/03/26/france-marine-le-pen-euro-exit-wouldnt-be-chaos.html