NATO is stepping up aerial surveillance in the Baltic Sea, while France, Germany and Sweden are bolstering Denmark’s air defenses ahead of two summits in Copenhagen this week over a series of troubling drone incidents near the country’s airports and military bases.
The number of serious airspace violations in Europe has spiked this month, including by Russian warplanes. But not all NATO allies agree on how to respond. Poland is ready to use lethal force. Others say that must only be a last resort.
