French President Emmanuel Macron has written an open letter to European citizens, issuing an urgent appeal for mobilisation against the threats of nationalist retrenchment and apathy.
The letter has been published in newspapers in all 28 European Union countries on Tuesday.
The leader called it a roadmap to European renewal - saying the EU has never been so essential or in so much danger.
Elena Casas reports from Paris:

US, German scientists win Nobel medicine prize for work on light and brain
Nigeria military aircraft crashes with 32 aboard
At least 22 dead after boats collide on Congo river
Spanish PM Sanchez calls snap election for November 29
Hundreds of French schools stay closed ahead of nationwide day of student protests