The NATO chief is participating on Tuesday in the EU Commission's weekly meeting in Brussels ahead of the top meetings in Copenhagen where both he and von der Leyen will be present.
Not least, it's about the "drone wall" that has become increasingly relevant after the recent violations of airspace in NATO and EU countries.
– We must act now. Europe must deliver a strong and united response to Russia's drone intrusions over our borders. Therefore, we will propose immediate measures to create a drone wall, says von der Leyen in a brief press appearance together with Rutte.