The Leader of the Alliance of Liberals and Democrats for Europe group and Belgian MEP Guy Verhofstadt called for de-escalation and a negotiated solution to the conflict .
Belgian MEP Guy Verhofstadt leads the EU - Brexit negotiations .
The Leader of the Alliance of Liberals and Democrats for Europe group and Belgian MEP Guy Verhofstadt , who leads the EU - Brexit negotiations , called for de-escalation and a negotiated solution to the conflict .