Poland, Hungary and Slovakia have decided to close their borders to Ukrainian grain. The neighbors of the East argue that there are reasons of health, public concern and oversupply.

The European Commission has reacted this week by denouncing the decision of these governments. "Trade policy is the exclusive competence of the European Union," says the Commission's chief spokesman. "It is not a question of sanctioning, but of finding solutions based on European legislation, in the interests of Ukrainians and Europeans," he adds.