2017 Dutch–Turkish diplomatic incident

In March 2017, the Netherlands and Turkey were involved in a diplomatic incident, triggered by Turkish efforts to hold political rallies on Dutch territory and subsequent travel restrictions placed by Dutch authorities on Turkish officials seeking to promote the campaign for a 'yes' vote in the upcoming Turkish constitutional referendum to Turkish citizens living in the Netherlands. Such foreign campaigning is illegal under Turkish law.

Source: Wikipedia — 2017 Dutch–Turkish diplomatic incident (CC BY-SA 4.0)