Europe's moment of truth? Russian invasion of Ukraine tests EU's resolve

Wednesday's shelling of a children's hospital in Mariupol a reminder that the West has seen this movie before in Chechnya and Syria. Are chemical weapons next? If so, what are the EU's red lines? Like NATO, the European Union upping assistance to Ukraine while so far shying away from putting boots on the ground. The 27 still hope unprecedented sanctions will suffice alongside ever-increasing armament. 

Enter the limits of European solidarity: for its defence, the bloc remains dependent on US might for its energy on Russian oil and natural gas. Could this war prove a turning point?

Produced by Alessandro Xenos, Juliette Laurain and Léopoldine Iribarren.

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