“We have been at the most dangerous moment since the Second World War. The war in Ukraine is an attempt by Russia to threaten us all,” said Danish Prime Minister Mette Frederiksen at the start of the informal top around European defense in Copenhagen. Four new European defense projects are discussed there, from a drone wall to a space shield. Defense specialist and former colonel Roger Houses analyzes them all: “With a few small drones you can stop the airport of Zaventem for days.”

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