The United Nations has told member nations of the European Union (EU) that they must accept 200,000 migrants in a “common strategy” rather than their current “piecemeal” approach.

The head of the UN’s refugee agency said that the EU is reaching a “defining moment.”

Antonio Guterres said that the EU leadership must demand “mandatory participation” of any country in the EU.

Germany has been taking in the majority of the migrants but is starting to limit migrant access because of the mass influx.

“Germany is doing what is morally and legally required of us, no more and no less,” German Chancellor Angela Merkel said Thursday. “That’s why this problem concerns all of us in Europe.”

British Prime Minister David Cameron said that because “Britain is a moral nation” they will fulfill their responsibilities.

Germany and France have sent a proposal to all EU nations with suggested amounts of migrants for each country but has found backlash from the smaller nations.  CNN reported over 350,000 migrants have come into Europe this year, a level not seen since World War II.  Over 3,600 people have died trying to make the journey.